CD RADIO INC
S-3, 1999-08-27
RADIO BROADCASTING STATIONS
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<PAGE>


    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 27, 1999
                                                     REGISTRATION NO. 333-
________________________________________________________________________________
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
                                 CD RADIO INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

<TABLE>
<S>                                                 <C>
                     DELAWARE
         (STATE OR OTHER JURISDICTION OF                                52-1700207
          INCORPORATION OR ORGANIZATION)                    (IRS EMPLOYER IDENTIFICATION NO.)
</TABLE>

                            ------------------------
                    1221 AVENUE OF THE AMERICAS, 36TH FLOOR
                            NEW YORK, NEW YORK 10020
                                  212-584-5100
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                              PATRICK L. DONNELLY
              SENIOR VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY
                                 CD RADIO INC.
                    1221 AVENUE OF THE AMERICAS, 36TH FLOOR
                            NEW YORK, NEW YORK 10020
                                  212-584-5100
      (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
                        AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
                                    COPY TO:
                              MITCHELL S. FISHMAN
                    PAUL, WEISS, RIFKIND, WHARTON & GARRISON
                          1285 AVENUE OF THE AMERICAS
                         NEW YORK, NEW YORK 10019-6064
                                  212-373-3000
                            ------------------------
     APPROXIMATE DATE OF PROPOSED SALE TO PUBLIC: From time to time, after this
Registration Statement becomes effective.
     If the securities being registered on this Form are being offered pursuant
to dividend or interest reinvestment plans, please check the following box. [ ]
     If any of the securities being registered on this Form is to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, please check the following box. [x]
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]
     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]
     If the delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [ ]
                            ------------------------
                        CALCULATION OF REGISTRATION FEE

<TABLE>
<S>                                       <C>                 <C>               <C>                  <C>
                                                               PROPOSED            PROPOSED
                                                                MAXIMUM             MAXIMUM            AMOUNT OF
   TITLE OF EACH CLASS OF SECURITIES        AMOUNT TO BE      OFFERING PRICE       AGGREGATE         REGISTRATION
            TO BE REGISTERED                 REGISTERED        PER SHARE        OFFERING PRICE(1)         FEE
Debt Securities(2)......................
Preferred Stock, par value $.001 per
  share.................................
Common Stock, par value $.001 per
  share(3)..............................
Warrants(4).............................
     Total..............................               (5)               (5)       $500,000,000           $139,000(5)
</TABLE>

                                                        (footnotes on next page)
                            ------------------------
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
________________________________________________________________________________




<PAGE>

(1) The aggregate principal amount and/or expected initial public offering price
    of the securities registered hereby will not exceed $500,000,000 in U.S.
    dollars or the U.S. dollar equivalent in foreign currency or currency units.

(2) May be issued at an original issue discount.

(3) Includes associated Preferred Stock Purchase Rights, which initially are
    attached to and trade with the shares of the common stock being registered
    hereby. Value attributable to such Preferred Stock Purchase Rights, if any,
    is reflected in the market price of the common stock.

(4) The warrants covered by this registration statement may be preferred stock
    warrants, debt warrants or common stock warrants.

(5) The aggregate amount of each of the debt securities, the preferred stock,
    the common stock and the warrants and the aggregate offering price per unit
    have been omitted pursuant to Securities Act Release No. 6964. The
    registration fee has been calculated pursuant to Rule 457(o) under the
    Securities Act of 1933 and reflects the offering price rather than the
    principal amount of any Debt Securities issued at a discount.






<PAGE>

                             SUBJECT TO COMPLETION

                  PRELIMINARY PROSPECTUS DATED AUGUST 27, 1999

PROSPECTUS
                                  $500,000,000
                                     [LOGO]

                       DEBT SECURITIES, PREFERRED STOCK,
                           COMMON STOCK AND WARRANTS

We from time to time may offer:

  unsecured debt securities in one or more series;

  shares of preferred stock in one or more series;

  shares of common stock;

  warrants or other rights to purchase debt securities, preferred stock or
  common stock or any combination of securities; and

  any combination of debt securities, preferred stock, common stock or warrants,

at an aggregate initial public offering price not to exceed $500,000,000.

The number, amount, prices, net proceeds to CD Radio Inc. and specific terms of
the securities will be determined at or before the time of sale and will be set
forth in an accompanying prospectus supplement.

The net proceeds to us from the sale of the securities will be the initial
public offering price or the purchase price of those securities less any
applicable commission or discount, and less any other expenses of CD Radio
associated with the issuance and distribution of those securities.

If any agents or any underwriters are involved in the sale of the foregoing
securities, their names and any applicable commission or discount will be set
forth in the accompanying prospectus supplement.

This prospectus may not be used for the sale of any securities unless it is
accompanied by a prospectus supplement. The accompanying prospectus supplement
may modify or supersede any statement in this prospectus.

                 Nasdaq National Market trading symbol: 'CDRD.'

INVESTING IN OUR SECURITIES INVOLVES RISKS. SEE 'RISK FACTORS' BEGINNING ON
PAGE 4.

     Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.
                      -----------------------------------

                       Prospectus dated           , 1999.

INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED BEFORE THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL BEFORE
REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.






<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Special Note Regarding Forward Looking Statements...........    2
About This Prospectus.......................................    3
About CD Radio..............................................    3
Risk Factors................................................    4
Ratio of Earnings to Combined Fixed Charges and Preferred
  Stock Dividends...........................................   15
Use of Proceeds.............................................   15
Description of Debt Securities..............................   15
Description of Capital Stock................................   27
Description of Warrants.....................................   42
Plan of Distribution........................................   45
Legal Matters...............................................   45
Experts.....................................................   46
Incorporation by Reference..................................   46
Where You May Find Additional Available Information About
  Us........................................................   46
</TABLE>

                            ------------------------
     YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS PROSPECTUS OR TO
WHICH WE HAVE REFERRED YOU. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH
INFORMATION THAT IS DIFFERENT. THIS PROSPECTUS MAY ONLY BE USED WHERE IT IS
LEGAL TO SELL THESE SECURITIES. THE INFORMATION IN THIS PROSPECTUS MAY ONLY BE
ACCURATE ON THE DATE OF THIS PROSPECTUS.

               SPECIAL NOTE REGARDING FORWARD LOOKING STATEMENTS

     The following cautionary statements identify important factors that could
cause our actual results to differ materially from those projected in the
forward looking statements made in this prospectus. Any statements about our
expectations, beliefs, plans, objectives, assumptions or future events or
performance are not historical facts and may be forward looking. These
statements are often, but not always, made through the use of words or phrases
such as 'will likely result,' 'are expected to,' 'will continue,' 'is
anticipated,' 'estimated,' 'intends,' 'plans,' 'projection' and 'outlook.'
Accordingly, these statements involve estimates, assumptions and uncertainties
which could cause actual results to differ materially from those expressed in
them. Any forward looking statements are qualified in their entirety by
reference to the factors discussed throughout this prospectus, and particularly
the risk factors described under 'Risk Factors' in this prospectus. Among the
significant factors that have a direct bearing on our results of operations are:

           the potential risk of delay in implementing our business plan;

           increased costs of construction and launch of necessary satellites;

           risk of launch failure;

           unproven market and unproven applications of technology;

           our dependence on Space Systems/Loral, Inc. ('Loral') and Lucent
           Technologies, Inc. ('Lucent');

           unavailability of receivers and antennas; and

           our need for additional financing.

     These and other factors are discussed in 'Risk Factors' and elsewhere in
this prospectus.

     Because the risk factors referred to above could cause actual results or
outcomes to differ materially from those expressed in any forward looking
statements made by us or on our behalf, you should not place undue reliance on
any of these forward looking statements. Further, any forward looking statement
speaks only as of the date on which it is made, and we undertake no obligation
to update any forward looking statement or statements to reflect events or
circumstances after the date on which the statement is made or to reflect the
occurrence of unanticipated events. New factors emerge from time to time, and it
is not possible for us to predict which will arise. In addition, we cannot
assess with any precision the impact of each factor on our business or the
extent to which any factor, or combination of factors, may cause actual results
to differ materially from those contained in any forward looking statements.

                                       2




<PAGE>

                             ABOUT THIS PROSPECTUS

     This prospectus is part of a registration statement that we filed with the
Securities and Exchange Commission (the 'SEC') utilizing a 'shelf' registration
process. Under this shelf process, we may sell, over the next two years, any
combination of the securities described in this prospectus in one or more
offerings up to a total dollar amount of $500,000,000. This prospectus provides
you with a general description of the securities we may offer. Each time we sell
securities, we will provide a prospectus supplement that will contain specific
information about the terms of that offering. The prospectus supplement may also
add, update or change information contained in this prospectus. You should read
both this prospectus and any prospectus supplement together with the additional
information described under the heading 'Where You May Find Additional Available
Information About Us.'

                                 ABOUT CD RADIO

     We are building a digital quality radio service that will broadcast up to
100 channels directly from satellites to vehicles. CD Radio will be broadcast
throughout the continental United States over a frequency band, the 'S-band,'
that will augment traditional AM and FM radio bands. We hold one of only two
licenses issued by the FCC to build, launch and operate a national satellite
radio broadcast system. Under our FCC license, we have the exclusive use of a
12.5 MHz portion of the S-band for this purpose. Our service, which will be
primarily for motorists, will offer 50 channels of commercial-free, digital
quality music programming and up to 50 channels of news, sports, talk and
programming. We currently expect to commence CD Radio broadcasts at the end of
the fourth quarter of 2000, at an anticipated subscription price of $9.95 per
month.

     CD Radio was incorporated in the State of Delaware as Satellite CD Radio,
Inc. on May 17, 1990. On December 7, 1992, we changed our name to CD Radio Inc.,
and we formed a wholly owned subsidiary, Satellite CD Radio, Inc., that is the
holder of our FCC license. Our executive offices are located at 1221 Avenue of
the Americas, New York, New York 10020, our telephone number is (212) 584-5100
and our internet address is cdradio.com. The information on our website is not
part of this prospectus.

                                       3





<PAGE>

                                  RISK FACTORS

     In addition to the other information in this prospectus, the following risk
factors should be considered carefully in evaluating us and our business and in
deciding whether to invest in our securities.

OUR BUSINESS IS STILL IN THE DEVELOPMENT STAGE

     Historically, we have generated only losses. We are a development stage
company. The service we propose to offer, CD Radio, is in a relatively early
stage of development and we have never recognized any operating revenues or
conducted any operations. Since our inception, we have concentrated on raising
capital, obtaining required licenses, developing technology, strategic planning,
market research and building our infrastructure. Our financial results from our
inception on May 17, 1990 through June 30, 1999, are as follows:

      no revenues;

      net losses of approximately $95 million (including net losses of
      approximately $5 million during the year ended December 31, 1997 and $48
      million during the year ended December 31, 1998); and

      net losses applicable to common stock of approximately $206 million, which
      includes a deemed dividend on our former 5% Delayed Convertible Preferred
      Stock (the '5% Preferred Stock') of $52 million. In November 1997, we
      exchanged 1,846,799 shares of our 10 1/2% Series C Convertible Preferred
      Stock (the 'Series C Preferred Stock') for all of the issued and
      outstanding shares of 5% Preferred Stock.

     We do not expect any revenues before 2001, and still have a variety of
hurdles to surmount before commencing operations. We have not started to
broadcast CD Radio and do not expect to generate any revenues from operations
until the first quarter of 2001. Our ability to generate revenues, generate
positive cash flow and achieve profitability will depend upon a number of
factors, including:

      raising additional financing;

      the timely receipt of all necessary regulatory authorizations;

      the successful and timely construction and deployment of our satellite
      system;

      the development and manufacture by one or more consumer electronics
      manufacturers of devices capable of receiving CD Radio; and

      the successful marketing and consumer acceptance of CD Radio.

We cannot assure you that we will accomplish any of the above, that CD Radio
will ever commence operations, that we will attain any particular level of
revenues, that we will generate positive cash flow or that we will achieve
profitability.

WE NEED ADDITIONAL FINANCING TO BUILD AND LAUNCH OUR SERVICE

     We need more money to continue implementing our business plan. We require
near-term funding to continue building our system. We believe we can fund our
planned operations and the construction of our satellite and terrestrial system
into the first quarter of 2000 from our working capital at July 31, 1999, which
includes:

      the proceeds from our sale of 5,000,000 shares of common stock to Prime 66
      Partners, L.P. ('Prime 66') for $100 million on November 2, 1998;

      our sale of 9.2% Series A Junior Cumulative Convertible Preferred Stock to
      Apollo Investment Fund IV, L.P. and Apollo Overseas Partners IV, L.P.,
      which we refer to as the 'Apollo Investors,' for $135 million on
      December 23, 1998; and

      the proceeds from our sale of 200,000 units, each unit consisting of
      $1,000 principal amount of 14 1/2% senior secured notes due 2009 and three
      warrants, each to purchase 3.65 shares of our common stock, for $200
      million on May 18, 1999.

                                       4




<PAGE>

     The Apollo Investors have also granted us an option to sell them 650,000
shares of our 9.2% Series B Junior Cumulative Convertible Preferred Stock, par
value $.001 per share, for $65 million. Subject to customary conditions and
there not having occurred a material adverse change, we intend to exercise this
option before September 30, 1999. We refer to our 9.2% Series A Junior
Cumulative Convertible Preferred Stock and our 9.2% Series B Junior Cumulative
Convertible Preferred Stock together as the 'Junior Preferred Stock.'

     We currently do not have sufficient financing commitments to completely
fund our preoperational capital requirements. We expect to satisfy the remainder
of our funding requirements through the issuance of debt or equity securities or
a combination of debt and equity securities. We cannot assure you that we will
obtain additional financing on favorable terms or that we will do so on a timely
basis.

     We estimate that we will need the following amounts for the following
purposes:

<TABLE>
<S>                                                           <C>
to develop and commence operation of CD Radio by the end of   $1,170 million
  the fourth quarter of 2000
to fund operations through the first full year of operations  $  150 million
ending with the fourth quarter of 2001
  Total through the first year of operations                  $1,320 million
</TABLE>

     We have or expect that we may have use of the following funds to develop
and operate CD Radio:

net funds raised through June 30, 1999 (including $115        $  832 million
  million of debt which we must refinance or repay by the
earlier of February 29, 2000 and ten days prior to the
launch of our second satellite)
funds from the sale of 9.2% Series B Junior Cumulative        $   63 million
  Convertible Preferred Stock to the Apollo Investors, if we
exercise our option, net of fees and expenses
funds which Bank of America may, but is not required to,      $  106 million
  arrange for us ($225 million less $115 million to repay
our existing bank credit facility, net of estimated fees and
expenses)
  Total funds we may, or expect to be able to, access         $1,001 million

     After we give effect to the funds we have and the funds we expect to raise,
we estimate that we will need an additional $169 million to develop and commence
operation of CD Radio by the end of the fourth quarter of 2000 and an additional
$150 million to fund our business through the first full year of operations. If
Bank of America is unable to arrange a new credit facility, we will need to
raise an additional $221 million to fund our operations through the end of the
fourth quarter of 2000. We will require more money than estimated if there are
delays, cost overruns, launch failures or other adverse developments.

WE FACE MANY FINANCING CHALLENGES AND CONSTRAINTS

     We face many challenges and constraints in financing our development and
operations, including those listed below.

     Our debt instruments limit our ability to incur indebtedness. The
indentures governing our 15% senior secured discount notes due 2007 and our
14 1/2% senior secured notes due 2009 limit our ability to incur additional
indebtedness. In addition, we expect any future senior indebtedness will contain
similar limits on our ability to incur additional indebtedness.

     We will have to satisfy a variety of conditions before we can obtain any
syndicated bank borrowings. We entered into a credit agreement with Bank of
America and other lenders in July 1998 under which Bank of America and the other
lenders agreed to provide us a term loan facility of up to $115 million maturing
on the earlier of February 29, 2000 and ten days prior to the launch of our
second satellite. Bank of America has also agreed to attempt to arrange a

                                       5




<PAGE>

syndicate of lenders to provide us with a second term loan facility of $225
million. To borrow the funds under the second term loan facility, we must first
satisfy specified conditions and negotiate, execute and deliver definitive loan
documents. We intend to use a portion of the proceeds from this second term loan
facility to repay the existing term loan facility and for other general
corporate purposes. The second term loan facility would provide us with
approximately $106 million of net additional funds after repayment of the
existing term loan facility and the payment of fees and expenses.

     We have substantial near-term requirements for additional funds. We require
substantial funds to construct and launch the satellites that will be part of
our broadcast system. We are committed to pay a total of approximately $718
million under our Amended and Restated Contract with Loral (the 'Loral Satellite
Contract') for the construction, launch and in-orbit delivery of three
satellites and construction of our spare fourth satellite. Of this total, we
must pay $438 million for the construction of satellites and $280 million for
launch services. As of June 30, 1999, we had satisfied $303 million of the
amount due to Loral. We have also entered into an amendment to the Loral
Satellite Contract under which we will purchase some of the long-lead time
elements for a fifth satellite for $15 million. We started paying for the
construction of the satellites in April 1997 and we must pay further
installments through December 2003. Loral has agreed to defer a total of $50
million of the payments under the Loral Satellite Contract originally scheduled
for payment in 1999. Interest on the deferred amounts accrues at 10% per annum
until December 2001, at which time interest becomes payable quarterly in cash.
We must pay the amounts deferred in installments beginning in June 2002.

     If we fail to secure the financing required to pay Loral on a timely basis,
we risk:

      delays in launching our satellites and starting broadcasting operations;

      increases in the cost of building or launching our satellites or other
      activities necessary to put CD Radio into operation;

      a default on our commitments to Loral, our creditors or others;

      our inability to commence CD Radio service; and

      the forced discontinuance of our operations or the sale of our business.

     A delay in introducing our service could hinder our ability to raise
additional financing. Any delay in implementing our business plan would hurt our
ability to obtain the financing we need by adversely affecting our expected
results of operations and increasing our cost of capital. Our ability to begin
offering our CD Radio service at the end of the fourth quarter of 2000 depends
on Loral delivering completed satellites before the launch dates and providing
or obtaining launch services on a timely basis. A significant delay in the
development, construction, launch or commencement of operation of our satellites
would adversely affect our results of operations in a material way.

     Other delays in implementing our business plan could also materially
adversely affect our results of operations. Several factors could delay us,
including the following:

      obtaining additional authorizations from the FCC;

      coordinating the use of S-band radio frequency spectrum with Mexico;

      delays in or modifications to the design, development, technical
      specifications, construction or testing of our satellites, receivers or
      other aspects of our system;

      delay in commercial availability of devices capable of receiving
      CD Radio;

      failure of our vendors to perform as anticipated; and

      a delayed or unsuccessful satellite launch or deployment.

We have previously incurred some delays in implementing our business plan.
During any period of delay, we would continue to need significant amounts of
cash to fund capital expenditures, administrative and overhead costs,
contractual obligations and debt service. Accordingly, any delay could
materially increase the aggregate amount of funds we need to commence
operations. Additional financing may not be available on favorable terms or at
all during periods of delay.

                                       6




<PAGE>

WE ARE DEPENDENT UPON LORAL TO BUILD AND LAUNCH OUR SATELLITES

     Our business depends upon Loral successfully constructing and launching the
satellites to transmit CD Radio. We are relying upon Loral to construct and to
deliver these satellites in orbit on a timely basis. We cannot assure you that
Loral will deliver the satellites or provide these launch services on a timely
basis, if at all. If Loral fails to deliver functioning satellites in a timely
manner, our business could be materially adversely affected. Although our
agreement with Loral requires Loral to pay us penalties for late delivery, based
on the length of the delay, these remedies may not adequately mitigate the
damage any launch delays cause to our business. In addition, if Loral fails to
deliver the designated launch services due to causes beyond its control, Loral
will not be liable for the delay or the damages caused by the delay. While the
satellites are under construction, Loral is at risk should anything happen to
the satellites. In addition, Loral is responsible for making sure the satellites
meet specific performance specifications at the time of launch (in the case of
our first three satellites) or at the time of delivery to our ground storage
location (in the case of our fourth satellite). This means that if any satellite
is destroyed during or after launch or if the fourth satellite is damaged or
destroyed while in storage, Loral will not be responsible to us for the cost of
replacing it.

     We depend on Loral to obtain access to available slots on launch vehicles
and to contract with third-party launch service providers for the launch of our
satellites. A launch service provider may postpone one or more of our launches
for a variety of reasons, including:

      technical problems;

      a launch of a scientific satellite whose mission may be degraded by delay;

      the need to conduct a replacement launch for another customer; or

      a launch of another customer's satellite whose launch was postponed.

Generally, Loral is not liable to us for a satellite or launch failure. However,
if the first Proton launch vehicle used to launch our satellites fails, Loral
will provide us with a free replacement launch. The timing of this replacement
launch cannot be predicted, but in any event would not be before delivery of the
fourth satellite.

     We also depend on Loral to ensure that the software to test the satellites
before launch, to run the satellites and to track and control the satellites,
will be capable of handling the potential problems that may arise beginning on
January 1, 2000. These potential problems are known as 'The Year 2000 Issue.'
The Year 2000 Issue is the result of computer programs being written using two
digits (rather than four) to define a year, which could result in
miscalculations or system failures resulting from recognition of a date
occurring after December 31, 1999 as falling in the year 1900 (or another year
in the 1900s) rather than the year 2000 or thereafter. While currently the above
mentioned systems are not fully prepared to handle The Year 2000 Issue, Loral is
aware of this condition and has assured us that all Loral systems will be year
2000 compliant before the critical date of January 1, 2000.

WE ARE DEPENDENT ON LUCENT TO DESIGN AND DEVELOP CHIP SETS

     Our business depends upon Lucent successfully designing, developing and
manufacturing commercial quantities of integrated circuits (or chip sets), which
will be used in consumer electronic devices capable of receiving CD Radio's
broadcasts. If Lucent fails to deliver commercial quantities of the chip sets in
a timely manner, the costs of the chip set development work increases
significantly or the price of the chip set is not low enough to support the
introduction of consumer devices capable of receiving CD Radio, our business
will be materially adversely affected. We have agreed to pay Lucent the cost of
the development work related to the chip sets, currently estimated to be
approximately $27 million.

     We cannot assure you that:

      Lucent will be able to deliver significant quantities of chip sets in
      order for us to commence operations at the end of the fourth quarter of
      2000;

      the cost to us of the chip set development work will not exceed $27
      million; or

                                       7




<PAGE>

      Lucent will be able to establish a price for the chip sets which will be
      low enough to encourage and support the widespread introduction of
      consumer devices capable of receiving CD Radio.

WE ARE NOT SURE THERE WILL BE A MARKET FOR CD RADIO

     Currently no one offers a commercial satellite radio service such as
CD Radio in the United States. As a result, our proposed market is new and
untested and we cannot reliably estimate the potential demand for this service
or the degree to which our proposed service will meet that demand. We cannot
assure you that there will be sufficient demand for CD Radio to enable us to
achieve significant revenues or cash flow or profitable operations. CD Radio
will achieve or fail to gain market acceptance depending upon factors beyond our
control, including:

      the willingness of consumers to pay subscription fees to obtain satellite
      radio broadcasts;

      the cost, availability and consumer acceptance of devices capable of
      receiving CD Radio;

      our marketing and pricing strategies and those of our competitor;

      the development of alternative technologies or services; and

      general economic conditions.

OUR PLANNED SYSTEM RELIES ON UNPROVEN APPLICATIONS OF TECHNOLOGY

     Our satellite system applies technology in new and unproven ways. CD Radio
is designed to be broadcast from three satellites orbiting the Earth. Two of the
three satellites will transmit the same signal at any given time to receivers
that will receive signals through antennas. This design applies technology in
new and unproven ways. Accordingly, we cannot assure you that the CD Radio
system will work as planned.

     Some obstructions will adversely affect CD Radio reception. High
concentrations of tall buildings, other obstructions, such as those found in
large urban areas, and tunnels will block the signals from both transmitting
satellites. We plan to install terrestrial repeating transmitters to rebroadcast
CD Radio in some urban areas to mitigate this problem. However, some areas with
impediments to satellite line-of-sight may still experience 'dead zones.' We
cannot assure you that the CD Radio system will operate as planned with the
technology we have developed.

     Our system has never been tested with orbiting satellites. We cannot assure
you that the CD Radio system will function as intended until we test it with
orbiting satellites and antennas and receivers suitable for commercial
production. We have never done this kind of test because there are no commercial
satellites in orbit capable of transmitting radio signals on S-band frequencies
to the United States. In support of our application for our FCC license, we
conducted a terrestrial simulation of our proposed radio service from November
1993 through November 1994. For the demonstration, we transmitted S-band signals
to a prototype receiver and satellite dish antenna installed in a car to
simulate specific transmission characteristics of our planned system. As part of
the demonstration, the prototype receiver received 30 channels of compact disc
quality music while the car was driven throughout the range. We have also
successfully tested our system in San Francisco, where our terrestrial repeater
network has been completed.

SATELLITE LAUNCHES HAVE SIGNIFICANT RISKS

     We cannot assure you that the launches of our satellites will be
successful. Satellite launches have significant risks, including launch failure,
damage or destruction of the satellite during launch and failure to achieve a
proper orbit or operate as planned. The Loral Satellite Contract does not
protect us against the risks inherent in satellite launches or in-orbit
operations. Our three satellites are scheduled to be launched on Proton launch
vehicles, which are built by Russian entities. The Proton family of launch
vehicles has a launch success rate of 92% based on its last 50 launches. Past
experience, however, is not necessarily indicative of future performance.

     On July 5, 1999, the second stage of a Proton rocket launched from the
Baikonur Cosmodrome in Kazakhstan malfunctioned during flight. As a result of
this failure, the government

                                       8




<PAGE>

of Kazakhstan suspended all future Proton rocket launches and the Russian
government appointed an official investigatory commission. In late July, the
commission announced that the failure was caused by a fire which started in one
of the launch vehicle's engines. The commission also indicated that Russian
government and space agency officials would meet with Kazakhstani officials to
discuss a timetable for the resumption of launches from Baikonur. We cannot
assure you that these developments will not delay one or more of our anticipated
satellite launches.

     As part of our risk management program, we contracted with Loral for the
construction of a fourth satellite that we will use as a ground spare and for
some of the long-lead time parts for a fifth satellite. We also plan to obtain
insurance covering a replacement launch to the extent required to cover risks
Loral does not assume.

SATELLITES HAVE A LIMITED LIFE AND MAY FAIL IN ORBIT

     We expect that our satellites will last approximately 15 years, and that
after this period their performance in delivering CD Radio will deteriorate. We
cannot assure you, however, of the useful life of any particular satellite. Our
operating results would be adversely affected if the useful life of our initial
satellites is significantly shorter than 15 years.

     The useful lives of our satellites will vary and will depend on a number of
factors, including:

      quality of construction;

      amount of fuel on board;

      durability of component parts;

      expected gradual environmental degradation of solar panels;

      random failure of satellite components, which could result in damage to or
      loss of a satellite; and

      in rare cases, damage or destruction by electrostatic storms or collisions
      with other objects in space.

If one of our satellites fails on launch or in orbit and if we are required to
launch our spare satellite, our operational timetable will be delayed for up to
six months. If two or more of our satellites fail on launch or in orbit, our
operational timetable could be delayed by at least 16 months.

INSURANCE MAY NOT COVER ALL RISKS OF LAUNCHING AND OPERATING SATELLITES

     There are many potential risks to insure. Because our agreement with Loral
does not protect us against launch vehicle failure, failure of a satellite to
deploy correctly or failure of a satellite to operate as planned, we must
purchase insurance to protect adequately against these risks. We cannot assure
you that we will be able to purchase launch insurance or in-orbit insurance. The
insurance premiums we pay may increase substantially upon any adverse change in
insurance market conditions.

     Many risks we face may not be covered by insurance. Our insurance may not
cover all of our losses, and may not fully reimburse us for the following:

      expenditures for a satellite which fails to perform to specifications
      after launch;

      damages from business interruption, loss of business and any expenditures
      arising from satellite failures or launch delays; and

      losses for which there are deductibles, exclusions and conditions.

OUR TECHNOLOGY MAY BECOME OBSOLETE

     We will depend on technologies being developed by third parties to
implement key aspects of our system. These technologies may become obsolete. We
may be unable to obtain more advanced technologies on a timely basis or on
reasonable terms, or our competitors may obtain more advanced technologies and
we may not have access to these technologies.

                                       9




<PAGE>

RECEIVERS AND ANTENNAS ARE NOT YET AVAILABLE

     To receive the CD Radio service, a subscriber will need to purchase a
device capable of receiving our broadcasts as well as an appropriate antenna.
Although we have entered into an agreement with Lucent to develop and
manufacture chip sets that represent the essential element of CD Radio
receivers, we cannot assure you that Lucent will succeed in this development
effort. We have also entered into agreements with Delco, Recoton, Alpine and
Matsushita to design and develop devices capable of receiving CD Radio
broadcasts and antennas for use with these devices. We cannot assure you that
Delco, Recoton, Alpine or Matsushita will succeed in their development efforts.

     No one currently manufactures devices capable of receiving CD Radio
broadcasts and suitable antennas, and none of Delco, Recoton, Alpine and
Matsushita has agreed to manufacture commercial quantities of these devices. We
do not intend to manufacture or distribute CD Radio receivers and antennas
ourselves. We have discussed the manufacture of CD Radio receivers and antennas
for retail sale in the United States with several manufacturers, including
Delco, Visteon, Recoton, Alpine and Matsushita. These discussions may not result
in a binding commitment on the part of any manufacturer to produce, market and
sell devices capable of receiving CD Radio broadcasts and suitable antennas in a
timely manner and at a price that would permit the widespread introduction of
CD Radio in accordance with our business plan. In addition, any manufacturers of
devices capable of receiving CD Radio broadcasts and antennas may not produce
them in sufficient quantities to meet anticipated consumer demand. Our business
would be materially adversely affected if we cannot arrange for the timely
development of these products for commercial sale at an affordable price and
with sufficient retail distribution.

     Our FCC license requires that we design a receiver that is interoperable
with the national satellite radio system being developed by the other existing
licensee, XM Satellite Radio Inc. ('XM'). Although we have made progress towards
designing a receiver that is interoperable with the system XM is constructing,
we cannot predict whether we will be able to satisfy this interoperability
requirement because of the various technological challenges involved. Complying
with this interoperability requirement also could make the devices capable of
receiving CD Radio broadcasts and the related antenna more difficult and costly
to manufacture. Accordingly, this interoperability requirement could delay the
commercial introduction of these products or require that they be sold at higher
prices.

WE MAY NOT BE ABLE TO COMPETE EFFECTIVELY AGAINST CONVENTIONAL RADIO STATIONS,
THE OTHER HOLDER OF AN FCC LICENSE TO PROVIDE THIS SERVICE OR OTHER POTENTIAL
PROVIDERS OF THIS SERVICE

     We will be competing with established conventional (over the air) radio
stations, which, unlike CD Radio:

      do not charge subscription fees;

      do not require users to purchase a separate receiver and antenna;

      often offer local information programming such as local news and traffic
      reports; and

      in the case of some FM stations, may begin to broadcast digital, compact
      disc quality signals before we start operations.

     In addition to direct competition from XM, we face the possibility of
additional satellite broadcast radio competition:

      if the FCC grants additional licenses for satellite-delivered radio
      services;

      if holders of licenses for other portions of the electromagnetic spectrum
      (currently licensed for other uses) obtain changes to their licenses; or

      if holders of licenses without FCC restrictions for other portions of the
      spectrum devise a method of broadcasting satellite radio.

     Finally, one or more competitors may design a satellite radio broadcast
system that is superior to our system. The competitive factors listed above
could materially adversely affect our results of operations. In addition, any
delays in introducing our service also could place us at a competitive
disadvantage relative to any competitor that begins operations before us.

                                       10




<PAGE>

WE MAY NOT BE ABLE TO SUCCESSFULLY MANAGE RAPID GROWTH

     We expect to experience significant and rapid growth in the scope and
complexity of our business as we proceed with the development of our satellite
radio system. As of the date of this prospectus, we do not currently employ
sufficient staff to program our broadcast service, manage operations, control
the operation of our satellites or handle sales and marketing efforts. Although
we have hired experienced executives in these areas, we must hire many
additional employees before we begin commercial operations of our service. This
growth is likely to place a substantial strain on our management and operational
resources. Our results of operations could be materially adversely affected if
we fail to do any of the following:

      develop and implement effective management systems;

      hire and train sufficient personnel to perform all of the functions
      necessary to effectively provide our service;

      manage our subscriber base and business; or

      manage our growth effectively.

WE ARE SUBJECT TO CONTINUING AND DETAILED REGULATION BY THE FCC

     Our FCC license is being challenged. On October 10, 1997, the FCC's
International Bureau granted us an FCC license after we submitted a winning bid
in an FCC auction. One of the low-bidders in the FCC auction applied to have the
full FCC review the grant of our FCC license. The application requests that the
FCC adopt restrictions on foreign ownership and overrule the granting of our FCC
license on the basis of our ownership. If the FCC denies this application, the
complaining party may appeal to the U.S. Court of Appeals. Because less than 25%
of our voting stock is owned by non-U.S. persons, we believe the FCC will uphold
the grant of our FCC license. We cannot predict the ultimate outcome of any
proceedings relating to this application or any other proceedings that
interested parties may file. Since December 29, 1997, there have been no
developments in this matter.

     We need a modification to our FCC license before we can begin operation. In
May 1998, we decided to increase the number of satellites in our system from two
to three and to change the orbit of those satellites. To implement these
changes, the FCC must approve changes to our FCC license. If the FCC were to
deny our application to modify our license, we would be required to redesign our
proposed system and modify our satellites, at a significant cost, and our
commercial operations would be delayed. On December 11, 1998, we filed an
application with the FCC for these changes. Although we believe that the FCC
will approve our application for this necessary change, we cannot assure you
that this will occur. XM and WCS Radio, Inc. have filed comments objecting to
this modification of our FCC license. The FCC staff has requested additional
materials from us, and we are in the process of complying with the staff's
request. We cannot predict the time it will take the FCC to act on our
application or any of these objections, or whether additional submissions or
waiver requests will be necessary, and we cannot be sure that the modification
we have requested will be granted.

     We will need to renew our FCC license after eight years. The term of our
FCC license with respect to each satellite is eight years, beginning on the date
it is declared operational after it is inserted into orbit. When the term of our
FCC license for each satellite expires, we must apply for a renewal of the
relevant license. If the FCC does not renew our FCC license, we would be forced
to cease broadcasting CD Radio. We cannot assure you that we will obtain these
renewals.

     We need FCC approval to operate our terrestrial repeating transmitters.
Although we plan to install terrestrial repeating transmitters to rebroadcast
CD Radio in some urban areas, the FCC has not yet established rules governing
the application procedure for obtaining authorizations to construct and operate
terrestrial repeating transmitters on a commercial basis. The FCC initiated a
rulemaking on the subject in March 1997 and received several comments urging the
FCC to consider placing restrictions on the ability to deploy terrestrial
repeating transmitters. We cannot predict the outcome of this process.

                                       11




<PAGE>

     The United States needs to complete frequency coordination with Mexico. To
use our assigned spectrum, the United States government must complete a process
of frequency coordination with Mexico. We cannot assure you that the United
States government will be able to coordinate use of this spectrum with Mexico or
do so in a timely manner. The United States and Canadian governments were
required to complete a similar process and have done so.

     New devices may interfere with CD Radio broadcasts. The FCC has proposed
regulations to allow a new type of lighting device that may generate radio
energy in the part of the spectrum we intend to use. We believe the current
proposed regulations for these devices do not contain adequate safeguards to
prevent interference with services such as CD Radio. If the FCC fails to adopt
adequate technical standards specifically applicable to these devices and if the
use of these devices becomes commonplace, we could experience difficulties
enforcing our rights. If the FCC fails to adopt adequate standards, the new
devices could materially adversely affect reception of our broadcasts. Although
we believe that the FCC will set adequate standards to prevent harmful
interference, we cannot assure you that it will do so.

     We may be adversely affected by changing regulations. To provide CD Radio,
we must retain our FCC license and obtain or retain other requisite approvals.
Our ability to do so could be affected by changes in laws, FCC regulations,
international agreements governing communications policy generally or
international agreements relating specifically to CD Radio. In addition, the
manner in which CD Radio would be offered or regulated could be affected by
these changes.

     We may be adversely affected by foreign ownership restrictions. The
Communications Act of 1934 restricts ownership in some broadcasters by
foreigners. If these foreign ownership restrictions were applied to us, we would
need further authorization from the FCC if our foreign ownership were to exceed
25%. The order granting our FCC license determined that, as a private carrier,
those restrictions do not apply to us. However, the order granting our FCC
license stated that our foreign ownership status under the Communications Act
could be raised in a future proceeding. The pending appeal of the grant of our
FCC license may bring the question of foreign ownership restrictions before the
full FCC.

     We could be required to comply with public service regulations. The FCC has
indicated that it may impose public service obligations on satellite radio
broadcasters in the future, which could add to our costs or reduce our revenues.
For example, the FCC could require broadcasters to set aside channels for
educational programming. We cannot predict whether the FCC will impose public
service obligations or the impact that any of these obligations would have on
our results of operations.

CONSUMERS MAY STEAL OUR SERVICE

     Consumers may steal the CD Radio signal. Although we plan to use encryption
technology to mitigate signal piracy, we do not believe that this technology is
infallible. Accordingly, we cannot assure you that we can eliminate theft of the
CD Radio signal. Widespread signal theft could reduce the number of motorists
willing to pay us subscription fees and materially adversely affect our results
of operations.

OUR PATENTS MAY NOT BE SUFFICIENT TO PREVENT OTHERS FROM COPYING ELEMENTS OF OUR
SYSTEM

     Although our U.S. patents cover various features of satellite radio
technology, our patents may not cover all aspects of our system. Others may
duplicate aspects of our system which are not covered by our patents without
liability to us. In addition, competitors may challenge, invalidate or
circumvent our patents. We may be forced to enforce our patents or determine the
scope and validity of other parties' proprietary rights through litigation. In
this event, we may incur substantial costs and we cannot assure you of success
in this litigation. In addition, others may block us from operating our system
if our system infringes their patents, their pending patent applications which
mature into patents or their inventions developed earlier which mature into
patents. Should we desire to license our technology, we cannot assure you that
we can do so. Assuming we pay all necessary fees on time, the earliest
expiration date on any of our patents is April 10, 2012.

                                       12




<PAGE>

WE MAY NOT BE ABLE TO SATISFY A CHANGE OF CONTROL OFFER

     The indentures governing our senior secured notes and our senior secured
discount notes and the certificates of designations for our Series C Preferred
Stock, 9.2% Series A Junior Cumulative Convertible Preferred Stock and 9.2%
Series B Junior Cumulative Convertible Preferred Stock contain provisions that
apply to a change of control of our company. If someone triggers a change of
control as defined in those instruments, we must offer to purchase those
securities. If we have to make such an offer, we cannot be sure that we will
have enough funds to pay for all the securities that holders could tender. If we
fail to pay for our senior secured notes and our senior secured discount notes
in a change of control offer, we will be in default under the indentures for the
affected notes and the holders of these notes and their trustees may demand that
we prepay all amounts outstanding under these notes. If we fail to pay for the
Series C Preferred Stock in a change of control offer, the holders of a majority
of this class of stock will be able to elect directors constituting at least 25%
of our board of directors, up to a maximum of two directors. If we fail to pay
for the 9.2% Series A Junior Cumulative Convertible Preferred Stock and the 9.2%
Series B Junior Cumulative Convertible Preferred Stock in a change of control
offer because of our obligations to other holders of our debt securities or
preferred stock, we must use our best efforts to satisfy these obligations or to
obtain permission to repurchase these classes of preferred stock.

EXISTING STOCKHOLDERS MAY CONTROL US AND THEIR INTERESTS MAY CONFLICT WITH YOURS

     As of July 31, 1999, our executive officers and directors beneficially
owned or could vote approximately 19% of our outstanding common stock. In
addition, as of that date, our executive officers and directors together with
Prime 66 and the Apollo Investors beneficially owned or could vote approximately
47% of our outstanding common stock (assuming conversion of the Junior Preferred
Stock). As a result of this concentration of ownership, these stockholders, if
they choose to act in concert, may exert considerable influence over our
management and policies. Similarly, some or all of these stockholders could
delay, defer or prevent a change of control.

WE DO NOT INTEND TO PAY ANY DIVIDENDS ON OUR COMMON STOCK

     We have never paid any dividends on our common stock, and we do not
currently anticipate paying any dividends on this stock. In addition, many of
our agreements limit our ability to pay dividends.

OUR STOCK PRICE HAS BEEN VOLATILE

     The trading price of our common stock has been volatile, and it may
continue to be so. This trading price could fluctuate widely in response to
announcements of business and technical developments by us or our competitors,
our success in accomplishing our business plan and other events or factors,
including expectations by investors and securities analysts and our prospects.
In addition, stock markets have experienced extreme price volatility in recent
years. This volatility has had a substantial effect on the market prices of
development stage companies, at times for reasons unrelated to their operating
performance. These broad market fluctuations may adversely affect the price of
our common stock.

OUR RIGHTS PLAN AND ANTI-TAKEOVER PROVISIONS IN OUR CHARTER DOCUMENTS COULD
PREVENT AN ACQUISITION OF OUR COMPANY

     Our stockholders rights plan, the anti-takeover provisions in our charter
documents and any issuance of our preferred stock could be deemed to have
anti-takeover effects and may delay, deter or prevent an acquisition of our
company that a stockholder might consider to be in his or her best interest. Our
board of directors has the authority to issue shares of preferred stock in one
or more series and to determine the price, rights, preferences and privileges of
those shares without any further vote or action by stockholders. We have adopted
a stockholders rights plan and in connection with the stockholders rights plan,
our board of directors designated 300,000 shares of preferred stock as Series B
Preferred Stock. Any issuance of our preferred stock, including preferred stock
with voting and conversion rights, as well as our Series C Preferred Stock, our
9.2% Series A Junior Cumulative Convertible Preferred Stock and our 9.2%
Series B

                                       13




<PAGE>

Junior Cumulative Convertible Preferred Stock, which are convertible into shares
of common stock, may adversely affect the voting power of the holders of common
stock.

     We also may become subject to the anti-takeover provisions of Section 203
of the Delaware General Corporation Law. These provisions could delay or prevent
a change of our control or adversely affect the market price of our common
stock. Furthermore, the severance provisions of employment agreements with some
members of our management provide for payments that could discourage an
attempted change in our control.

THERE IS NO PUBLIC MARKET FOR THE DEBT SECURITIES, PREFERRED STOCK OR WARRANTS

     Before the offering of any debt securities, preferred stock or warrants,
there will have been no public market for those securities and we do not intend
to apply for the listing of any debt securities or preferred stock that may be
offered by this prospectus on any securities exchange or for quotation of any
debt securities or preferred stock on any public market. We cannot assure you
that an active public market for any debt securities, preferred stock or
warrants will develop or as to the liquidity, if any, that may develop in such
market. If an active public market in any new class of securities does not
develop, the market price and liquidity of those securities may be adversely
affected. Please refer to the section in this prospectus entitled 'Plan of
Distribution.'

     Historically, the market for non-investment grade debt securities and
preferred stock has been affected by disruptions that have caused substantial
volatility in the prices of securities similar to the debt securities, preferred
stock and warrants that may be offered by this prospectus. We cannot assure you
that any market for those securities will not be affected by similar
disruptions.

HOLDERS OF DEBT SECURITIES WITH ORIGINAL ISSUE DISCOUNT MAY BE LIMITED IN
BANKRUPTCY CLAIMS

     Debt securities that are issued or treated as issued at a discount from
their principal amount will generally be treated as having original issue
discount. If a bankruptcy case is commenced by or against us under the United
States Bankruptcy Code after the issuance of the debt securities, the claim of a
holder of the debt securities may be limited to an amount equal to the sum of
(1) the initial public offering price for the debt securities and (2) that
portion of the original issue discount that is not deemed to constitute
'unmatured interest' for purposes of the United States Bankruptcy Code. Any
original issue discount that was not amortized as of the date of the
commencement of a bankruptcy filing would constitute 'unmatured interest.'

DILUTION UPON CONVERSION OF PREFERRED STOCK

     Our common equity holders and warrant holders may be diluted by the
following actions:

      if the holders of our Series C Preferred Stock convert their shares into
      common stock, which may be done at any time;

      if the Apollo Investors convert their Junior Preferred Stock into common
      stock, which may be done at any time;

      if we issue additional equity securities, which we may do at any time
      unless prior approval of our stockholders is required under Delaware law,
      the rules of the Nasdaq National Market or the rules of any other stock
      exchange on which our equity securities may be listed; or

      if Ford exercises its warrants to purchase up to four million shares of
      our common stock, which may be done only if Ford satisfies requirements
      relating to the manufacture of vehicles capable of receiving CD Radio.

                                       14






<PAGE>

                  RATIO OF EARNINGS TO COMBINED FIXED CHARGES
                         AND PREFERRED STOCK DIVIDENDS

     The following table sets forth our ratio of earnings to combined fixed
charges and preferred stock dividends for the periods indicated.

<TABLE>
<CAPTION>
                                             YEAR ENDED DECEMBER 31,
                                 -----------------------------------------------   SIX MONTHS ENDED
                                  1994      1995      1996      1997      1998      JUNE 30, 1999
                                  ----      ----      ----      ----      ----      -------------
<S>                              <C>       <C>       <C>       <C>       <C>       <C>
Ratio of earnings to fixed
  charges(1)...................    --        --        --        --        --          --
Ratio of earnings to combined
  fixed charges and preferred
  stock dividends(1)...........    --        --        --        --        --          --
</TABLE>

- --------------------
(1) No figure is provided for any period during which the applicable ratio was
    less than 1.00.

     The ratio of earnings to fixed charges is computed by dividing our
earnings, which include income before taxes (excluding the cumulative and
transition effects of accounting changes) and fixed charges, by fixed charges.
The ratio of earnings to combined fixed charges and preferred stock dividends is
computed by dividing earnings by the sum of fixed charges and dividends on
preferred stock. 'Fixed charges' consist of interest on debt and a portion of
rentals determined to be representative of interest. For the years ended
December 31, 1994, 1995, 1996, 1997 and 1998 and for the six months ended
June 30, 1999, our earnings were insufficient to cover our fixed charges by
approximately $4.1 million, $2.1 million, $2.8 million, $4.8 million, $62.3
million and $46.4 million. Earnings were also inadequate to cover our combined
fixed charges and preferred stock dividends over the same time periods by
approximately $4.1 million, $2.1 million, $2.8 million, $59.1 million, $99.9
million and $66.0 million.

                                USE OF PROCEEDS

     Unless otherwise indicated in the applicable prospectus supplement, we will
use the net proceeds from the sale of the offered securities for general
corporate purposes, including capital expenditures, the reduction of
indebtedness and other purposes. We may invest funds not required immediately
for such purposes in short-term obligations or we may use them to reduce the
future level of our indebtedness.

                         DESCRIPTION OF DEBT SECURITIES

     The following description of the terms of the debt securities sets forth
certain general terms that may apply to the debt securities. The particular
terms of any debt securities will be described in the prospectus supplement
relating to those debt securities. For purposes of this 'Description of Debt
Securities,' the term 'CD Radio' refers to our company but not to any of its
subsidiaries.

     Any senior debt securities will be issued in one or more series under an
indenture, as supplemented or amended from time to time, between us and an
institution that we will name in the related prospectus supplement, as trustee.
Any subordinate debt securities will be issued in one or more series under an
indenture, as supplemented or amended from time to time, between us and an
institution that we will name in the related prospectus supplement, as trustee.
For ease of reference, we will refer to the indenture relating to any senior
debt securities as the senior indenture and to the indenture relating to any
subordinate debt securities as the subordinate indenture.

     This summary of the terms and provisions of the debt securities and the
indentures is not necessarily complete, and we refer you to the copy of the
forms of the indentures which are filed as exhibits to the registration
statement of which this prospectus forms a part. Whenever we refer to particular
defined terms of the indentures in this section or in a prospectus supplement,
we are incorporating these definitions into this prospectus or the prospectus
supplement.

                                       15




<PAGE>

GENERAL

     The debt securities will be issuable in one or more series in accordance
with an indenture supplemental to the applicable indenture or a resolution of
our board of directors or a committee of the board. Unless otherwise specified
in a prospectus supplement, each series of senior debt securities will rank
equally in right of payment with all of our other senior unsecured obligations.
Each series of subordinate debt securities will be subordinated and junior in
right of payment to the extent and in the manner described in the subordinate
indenture and any supplemental indenture relating to the subordinate debt
securities. Except as otherwise provided in a prospectus supplement, the
indentures do not limit our ability to incur other secured or unsecured debt,
whether under the indentures, any other indenture that we may enter into in the
future or otherwise. For more information, you should read the prospectus
supplement relating to a particular offering of securities.

     The applicable prospectus supplement will describe the following terms of
the series of debt securities with respect to which this prospectus is being
delivered:

      the title of the debt securities of the series and whether such series
      constitutes senior debt securities or subordinated debt securities;

      any limit on the aggregate principal amount of the debt securities;

      the person to whom any interest on a debt security shall be payable, if
      other than the person in whose name that debt security is registered on
      the regular record date;

      the date or dates on which the principal and premium, if any, of the debt
      securities of the series are payable or the method of that determination
      or the right to defer any interest payments;

      the rate or rates (which may be fixed or variable) at which the debt
      securities will bear interest, if any, or the method of determining the
      rate or rates, the date or dates from which such interest will accrue, the
      interest payment dates on which any such interest will be payable or the
      method by which the dates will be determined, the regular record date for
      any interest payable on any interest payment date and the basis upon which
      interest will be calculated if other than that of a 360-day year of twelve
      30-day months;

      the place or places where the principal of and any premium and any
      interest on the debt securities of the series will be payable, if other
      than the Borough of Manhattan, The City of New York;

      the period or periods within which, the date or dates on which, the price
      or prices at which and the terms and conditions upon which the debt
      securities of the series may be redeemed, in whole or in part, at our
      option or otherwise;

      our obligation, if any, to redeem, purchase or repay the debt securities
      of the series pursuant to any sinking fund or analogous provisions or at
      the option of the holders and the period or periods within which, the
      price or prices at which, the currency or currencies including currency
      unit or units in which and the terms and conditions upon which, the debt
      securities shall be redeemed, purchased or repaid, in whole or in part;

      the terms, if any, upon which the debt securities of the series may be
      convertible into or exchanged for other debt securities, preferred stock
      or common stock of CD Radio and the terms and conditions upon which the
      conversion or exchange shall be effected, including the initial conversion
      or exchange price or rate, the conversion or exchange period and any other
      additional provisions;

      the denominations in which any debt securities will be issuable, if other
      than denominations of $1,000 and any integral multiple thereof;

      the currency, currencies or currency units in which payment of principal
      of and any premium and interest on debt securities of the series shall be
      payable, if other than United States dollars;

                                       16




<PAGE>

      any index, formula or other method used to determine the amount of
      payments of principal of and any premium and interest on the debt
      securities;

      if the principal amount payable at the stated maturity of debt securities
      of the series will not be determinable as of any one or more dates before
      the stated maturity, the amount that will be deemed to be the principal
      amount as of any date for any purpose, including the principal amount
      thereof which will be due and payable upon any maturity other than the
      stated maturity or which will be deemed to be outstanding as of any date
      (or, in any such case, the manner in which the deemed principal amount is
      to be determined), and if necessary, the manner of determining the
      equivalent thereof in United States currency;

      if the principal of or any premium or interest on any debt securities is
      to be payable, at our election or the election of the holders, in one or
      more currencies or currency units other than that or those in which such
      debt securities are stated to be payable, the currency, currencies or
      currency units in which payment of the principal of and any premium and
      interest on such debt securities shall be payable, and the periods within
      which and the terms and conditions upon which such election is to be made;

      if other than the principal amount thereof, the portion of the principal
      amount of the debt securities which will be payable upon declaration of
      the acceleration of the maturity thereof or provable in bankruptcy;

      the applicability of, and any addition to or change in, the covenants and
      definitions then set forth in the applicable indenture or in the terms
      then set forth in such indenture relating to permitted consolidations,
      mergers or sales of assets;

      any changes or additions to the provisions of the applicable indenture
      dealing with defeasance, including the addition of additional covenants
      that may be subject to our covenant defeasance option;

      whether any of the debt securities are to be issuable in permanent global
      form and, if so, the depositary or depositaries for such global security
      and the terms and conditions, if any, upon which interests in such debt
      securities in global form may be exchanged, in whole or in part, for the
      individual debt securities represented thereby in definitive registered
      form, and the form of any legend or legends to be borne by the global
      security in addition to or in lieu of the legend referred to in the
      applicable indenture;

      the appointment of any trustee, any authenticating or paying agents,
      transfer agent or registrars;

      the terms, if any, of any guarantee of the payment of principal, premium
      and interest with respect to debt securities of the series and any
      corresponding changes to the provisions of the applicable indenture as
      then in effect;

      the terms, if any, of the transfer, mortgage, pledge or assignment as
      security for the debt securities of the series of any properties, assets,
      moneys, proceeds, securities or other collateral, including whether
      certain provisions of the Trust Indenture Act are applicable and any
      corresponding changes to provisions of the applicable indenture as then in
      effect;

      any addition to or change in the events of default with respect to the
      debt securities of the series and any change in the right of the trustee
      or the holders to declare the principal, premium and interest with respect
      to the debt securities due and payable;

      any applicable subordination provisions in addition to those set forth
      herein with respect to subordinated debt securities; and

      any other terms of the debt securities not inconsistent with the
      provisions of the applicable indenture.

     We may sell debt securities at a substantial discount below their stated
principal amount or debt securities that bear no interest or bear interest at a
rate which at the time of issuance is below market rates. We will describe the
material U.S. federal income tax consequences,

                                       17




<PAGE>

accounting and other special considerations applicable to the debt securities in
the applicable prospectus supplement.

     If the purchase price of any of the debt securities is payable in one or
more foreign currencies or currency units or if any debt securities are
denominated in one or more foreign currencies or currency units or if the
principal of, premium, if any, or interest, if any, on any debt securities is
payable in one or more foreign currencies or currency units, we will set forth
the restrictions, elections, specific terms and other information with respect
to such issue of debt securities and such foreign currency or currency units in
the applicable prospectus supplement.

EXCHANGE, REGISTRATION, TRANSFER AND PAYMENT

     Unless otherwise indicated in the applicable prospectus supplement,
principal, premium, if any, and interest, if any, on the debt securities will be
payable, without coupons, and the exchange of and the transfer of debt
securities will be registrable, at our office or agency maintained for such
purpose in the Borough of Manhattan, The City of New York and at any other
office or agency maintained for such purpose. Unless otherwise indicated in the
applicable prospectus supplement, the debt securities will be issued in
denominations of $1,000 and any integral multiples thereof.

     Holders may present each series of debt securities for exchange as provided
above, and for registration of transfer, with the form of transfer endorsed
thereon, or with a satisfactory written instrument of transfer, duly executed,
at the office of the appropriate securities registrar or at the office of any
transfer agent designated by us for such purpose and referred to in the
applicable prospectus supplement, without service charge and upon payment of any
taxes and other governmental charges as described in the indenture. We will
appoint the trustee of each series of debt securities as securities registrar
for such series under the indenture. If the applicable prospectus supplement
refers to any transfer agents, in addition to the securities registrar initially
designated by us with respect to any series, we may at any time rescind the
designation of any such transfer agent or approve a change in the location
through which any such transfer agent acts, provided that we maintain a transfer
agent in each place of payment for the series. We may at any time designate
additional transfer agents with respect to any series of debt securities.

     All moneys paid by us to a paying agent for the payment of principal,
premium, if any, or interest, if any, on any debt security which remain
unclaimed for two years after such principal, premium or interest has become due
and payable may be repaid to us, and after such time, the holder of such debt
security may look only to us for payment.

     In the event of any redemption, we shall not be required to (a) issue,
register the transfer of or exchange debt securities of any series during a
period beginning at the opening of business 15 days before the day of the
mailing of a notice of redemption of debt securities of that series to be
redeemed and ending at the close of business on the day of such mailing or (b)
register the transfer of or exchange any debt security called for redemption,
except, in the case of any debt securities being redeemed in part, any portion
not being redeemed.

BOOK-ENTRY SYSTEM

     The provisions set forth below in this section headed 'Book-Entry System'
will apply to the debt securities of any series if the prospectus supplement
relating to such series so indicates.

     Unless otherwise indicated in the applicable prospectus supplement, the
debt securities of such series will be represented by one or more global
securities registered with a depositary named in the prospectus supplement
relating to such series. Except as set forth below, a global security may be
transferred, in whole but not in part, only to the depositary or another nominee
of the depositary.

     The specific terms of the depositary arrangement with respect to a series
of debt securities will be described in the prospectus supplement relating to
the series. We anticipate that the following provisions will generally apply to
depositary arrangements.

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<PAGE>

     Upon the issuance of a global security, the depositary will credit, on its
book-entry registration and transfer system, the respective principal amounts of
the debt securities represented by such global security to the accounts of
institutions or persons, commonly known as participants, that have accounts with
the depositary or its nominee. The accounts to be credited will be designated by
the underwriters, dealers or agents. Ownership of beneficial interests in a
global security will be limited to participants or persons that may hold
interests through participants. Ownership of interests in such global security
will be shown on, and the transfer of those ownership interests will be effected
only through, records maintained by the depositary (with respect to
participants' interests) and such participants (with respect to the owners of
beneficial interests in such global security). The laws of some jurisdictions
may require that certain purchasers of securities take physical delivery of the
securities in definitive form. These limits and laws may impair the ability to
transfer beneficial interests in a global security.

     So long as the depositary, or its nominee, is the registered holder and
owner of such global security, the depositary or such nominee, as the case may
be, will be considered the sole owner and holder for all purposes of the debt
securities and for all purposes under the applicable indenture. Except as set
forth below or as otherwise provided in the applicable prospectus supplement,
owners of beneficial interests in a global security will not be entitled to have
the debt securities represented by such global security registered in their
names, will not receive or be entitled to receive physical delivery of debt
securities in definitive form and will not be considered to be the owners or
holders of any debt securities under the applicable indenture or such global
security. Accordingly, each person owning a beneficial interest in a global
security must rely on the procedures of the depositary and, if such person is
not a participant, on the procedures of the participant through which such
person owns its interest, to exercise any rights of a holder of debt securities
under the applicable indenture of such global security. We understand that under
existing industry practice, in the event we request any action of holders of
debt securities or if an owner of a beneficial interest in a global security
desires to take any action that the depositary, as the holder of such global
security is entitled to take, the depositary would authorize the participants to
take such action, and that the participants would authorize beneficial owners
owning through such participants to take such actions or would otherwise act
upon the instructions of beneficial owners owning through them.

     Payments of principal of and premium, if any, and interest, if any, on debt
securities represented by a global security will be made to the depositary or
its nominee, as the case may be, as the registered owner and holder of such
global security, against surrender of the debt securities at the principal
corporate trust office of the trustee. Interest payments will be made at the
principal corporate trust office of the trustee or by a check mailed to the
holder at its registered address. Payment in any other manner will be specified
in the prospectus supplement.

     We expect that the depositary, upon receipt of any payment of principal,
premium, if any, of interest, if any, in respect of a global security, will
credit immediately participants' accounts with payments in amounts proportionate
to their respective beneficial interests in the principal amount of such global
security as shown on the records of the depositary. We expect that payments by
participants to owners of beneficial interests in a global security held through
such participants will be governed by standing instructions and customary
practices, as is now the case with securities held for the accounts of customers
in bearer form or registered in 'street name,' and will be the responsibility of
such participant. Neither CD Radio nor the trustee nor any agent of CD Radio or
the trustee will have any responsibility or liability for any aspect of the
records relating to, or payments made on account of, beneficial ownership
interests in a global security or for maintaining, supervising or reviewing any
records relating to such beneficial ownership interests or for any other aspect
of the relationship between the depositary and its participants or the
relationship between such participants and the owners of beneficial interests in
such global security owning through such participants.

     Unless and until it is exchanged in whole or in part for debt securities in
definitive form, a global security may not be transferred except as a whole by
the depositary to a nominee of such

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<PAGE>

depositary or by a nominee of such depositary to such depositary or another
nominee of such depositary.

     Unless otherwise provided in the applicable prospectus supplement, debt
securities represented by a global security will be exchangeable for debt
securities in definitive form of like tenor as such global security in
denominations of $1,000 and in any greater amount that is an integral multiple
thereof if:

      the depositary notifies us and the trustee that it is unwilling or unable
      to continue as depositary for such global security or if at any time the
      depositary ceases to be a clearing agency registered under the Exchange
      Act and a successor depositary is not appointed by us within 90 days;

      we, in our sole discretion, determine not to have all of the debt
      securities represented by a global security and notify the trustee
      thereof; or

      there shall have occurred and be continuing an event of default or an
      event which, with the giving of notice or lapse of time, or both, would
      constitute an event of default with respect to the debt securities.

Any debt security that is exchangeable pursuant to the preceding sentence is
exchangeable for debt securities registered in such names as the depositary
shall instruct the trustee. It is expected that such instructions may be based
upon directions received by the depositary from its participants with respect to
ownership of beneficial interests in such global security. Subject to the
foregoing, a global security is not exchangeable except for a global security or
global securities of the same aggregate denominations to be registered in the
name of the depositary or its nominee.

OPTION TO DEFER INTEREST PAYMENTS OR TO PAY-IN-KIND

     If so described in the applicable prospectus supplement, we will have the
right, at any time and from time to time during the term of any series of debt
securities, to defer the payment of interest for such number of consecutive
interest payment periods as may be specified in the applicable prospectus
supplement, subject to the terms, conditions and covenants, if any, specified in
such prospectus supplement, provided that an extension period may not extend
beyond the stated maturity of the final installment of principal of the series
of debt securities. If provided in the applicable prospectus supplement, we will
have the right, at any time and from time to time during the term of any series
of debt securities, to make payments of interest by delivering additional debt
securities of the same series.

COVENANTS OF CD RADIO

     The covenants, if any, that will apply to a particular series of debt
securities will be set forth in the indenture relating to such series of debt
securities. Except as otherwise specified in the applicable prospectus
supplement with respect to any series of debt securities, we may remove or add
covenants without the consent of holders of the securities.

DEFEASANCE AND COVENANT DEFEASANCE

     We may be discharged from our obligations on the debt securities of any
series that have matured or will mature or be redeemed within one year if we
deposit with the trustee enough cash to pay all the principal, interest and any
premium due to the stated maturity date or redemption date of the debt
securities and comply with certain other conditions set forth in the applicable
indenture.

     Each indenture contains a provision that permits us to elect either:

      to be discharged after 90 days from all of our obligations (subject to
      limited exceptions) with respect to any series of debt securities then
      outstanding ('defeasance'); and/or

                                       20




<PAGE>

      to be released from our obligations under certain covenants and from the
      consequences of an event of default resulting from a breach of those
      covenants or cross-default ('covenant defeasance').

To make either of the above elections, we must deposit in trust with the trustee
money and/or U.S. Government Obligations, if the debt securities are denominated
in U.S. dollars, and/or Foreign Government Securities if the debt securities are
denominated in a foreign currency, which through the payment of principal and
interest under their terms will provide sufficient money, without reinvestment,
to repay in full those senior or subordinate debt securities. As a condition to
defeasance or covenant defeasance, we must deliver to the trustee an opinion of
counsel that the holders of the debt securities will not recognize income, gain
or loss for federal income tax purposes as a result of the defeasance.

     If either of the above events occur, the holders of the debt securities of
the series will not be entitled to the benefits of the indenture, except for
registration of transfer and exchange of debt securities and replacement of
lost, stolen or mutilated debt securities.

EVENTS OF DEFAULT

     The following events are defined in the indentures as 'Events of Default'
with respect to a series of debt securities (unless such event is specifically
inapplicable to a particular series as described in the applicable prospectus
supplement):

      failure to pay any interest on any debt security of that series when due,
      which failure continues for 30 days;

      failure to pay principal of or any premium on any debt security of that
      series when due;

      failure to deposit any sinking fund payment, within 30 days of when due,
      in respect of any debt security of that series;

      with respect to each series of debt securities, failure to perform any
      other of our covenants applicable to that series, which failure continues
      for 90 days after written notice to us by the trustee or to us and the
      trustee by the holders of at least 25% in principal amount of the
      outstanding debt securities of that series specifying such failure,
      requiring it to be remedied and stating that such notice is a 'Notice of
      Default';

      certain events of bankruptcy, insolvency or reorganization involving us;
      and

      any other Event of Default provided with respect to debt securities of
      that series.

     If an Event of Default for any series of debt securities occurs and
continues, the trustee or holders of at least 25% in principal amount of the
debt securities of that series may declare the entire principal amount of all
the debt securities of that series to be due and payable immediately. Subject to
certain conditions, the declaration may be annulled and past defaults (except
uncured payment defaults and certain other specified defaults) may be waived by
the holders of a majority of the principal amount of the outstanding debt
securities of that series.

     An Event of Default for a particular series of debt securities does not
necessarily constitute an event of default for any other series of debt
securities issued under an indenture.

     Each indenture will require the trustee, within 90 days after the
occurrence of a default known to it with respect to any outstanding series of
debt securities, to give the holders of that series notice of the default if
uncured or not waived. However, the trustee may withhold this notice if it
determines in good faith that the withholding of this notice is in the interest
of those holders, except that the trustee may not withhold this notice in the
case of a payment default. The term 'default' for the purpose of this provision
means any event that is, or after notice or lapse of time or both would become,
an Event of Default with respect to debt securities of that series.

     Other than the duty to act with the required standard of care during an
Event of Default, a trustee is not obligated to exercise any of its rights or
powers under the applicable indenture at the request or direction of any of the
holders of debt securities, unless the holders have offered to the trustee
reasonable indemnification. Each indenture provides that the holders of a
majority in

                                       21




<PAGE>

principal amount of outstanding debt securities of any series may in certain
circumstances direct the time, method and place of conducting any proceeding for
any remedy available to the trustee, or exercising any trust or other power
conferred on the trustee.

     The senior indenture will include a covenant that we will file annually
with the trustee a certificate of no default, or specifying any default that
exists.

MODIFICATION, WAIVER AND MEETINGS

     We and the trustee may enter into supplemental indentures without the
consent of the holders of debt securities for one or more of the following
purposes:

      to evidence the succession of another person to us pursuant to the
      provisions of the applicable indenture relating to consolidations, mergers
      and sales of assets and the assumption by the successor of our covenants,
      agreements and obligations in the applicable indenture and in the debt
      securities;

      to surrender any right or power conferred upon us by the applicable
      indenture, to add to our covenants such further covenants, restrictions,
      conditions or provisions for the protection of the holders of all or any
      series of debt securities as our board of directors shall consider to be
      for the protection of the holders of the debt securities, and to make the
      occurrence, or the occurrence and continuance, of a default in any of the
      additional covenants, restrictions, conditions or provisions a default or
      an Event of Default under the applicable indenture (provided, however,
      that with respect to any such additional covenant, restriction, condition
      or provision, the supplemental indenture may provide for a period of grace
      after default, which may be shorter or longer than that allowed in the
      case of other defaults, may provide for an immediate enforcement upon the
      default, may limit the remedies available to the trustee upon the default,
      or may limit the right of holders of a majority in aggregate principal
      amount of any or all series of debt securities to waive the default);

      to cure any ambiguity or omission or to correct or supplement any
      provision contained in the applicable indenture, in any supplemental
      indenture or in any debt securities that may be defective or inconsistent
      with any other provision contained therein, to convey, transfer, assign,
      mortgage or pledge any property to or with the trustee, or to make such
      other provisions in regard to matters or questions arising under the
      applicable indenture, in each case as shall not adversely affect the
      interests of any holders of debt securities of any series in any material
      respect;

      to modify or amend the applicable indenture to permit the qualification of
      such indenture or any supplemental indenture under the Trust Indenture Act
      as then in effect;

      to add guarantees with respect to any or all of the debt securities or to
      secure any or all of the debt securities;

      to add to, change or eliminate any of the provisions of the applicable
      indenture with respect to one or more series of debt securities; so long
      as any such addition, change or elimination not otherwise permitted under
      the applicable indenture shall (1) neither apply to any debt security of
      any series created before the execution of the supplemental indenture and
      entitled to the benefit of the provision nor modify the rights of the
      holders of any debt security with respect to the provision, or (2) become
      effective only when there is no such debt security outstanding;

      to evidence and provide for the acceptance of appointment by a successor
      or separate trustee with respect to the debt securities of one or more
      series and to add to or change any of the provisions of the applicable
      indenture as shall be necessary to provide for or facilitate the
      administration of such indenture by more than one trustee;

      to establish the form or terms of debt securities of any series;

      to provide for uncertificated debt securities in addition to or in place
      of certificated debt securities (provided that the uncertificated debt
      securities are issued in registered form for

                                       22




<PAGE>

      purposes of Section 163(f) of the Internal Revenue Code or in a manner
      such that the uncertificated debt securities are described in Section
      163(f)(2)(B) of such Code); and

      to make any change that does not adversely affect the rights of any
      holder.

     Modifications and amendments of the applicable indenture may be made by
CD Radio and the trustee with the consent of the holders of a majority in
principal amount of the outstanding debt securities of each series affected by
such modification or amendment; provided, however, that no such modification or
amendment may, without the consent of the holder of each outstanding debt
security affected thereby:

      change the stated maturity of the principal of, or any installment of
      principal of or interest on, any debt security;

      reduce the principal amount of, rate of interest on or any premium payable
      upon the redemption of any debt security;

      reduce the amount of principal of an original issue discount security
      payable upon acceleration of the maturity thereof;

      change the place of payment where, or the coin or currency in which, any
      debt security or any premium or interest thereon is payable;

      impair the right to institute suit for the enforcement of any payment on
      or with respect to any debt security after the stated maturity, redemption
      date or repayment date;

      reduce the percentage in principal amount of outstanding debt securities
      of any series, the consent of whose holders is required for modification
      or amendment of the applicable indenture or for waiver of compliance with
      certain provisions of such indenture or for waiver of certain defaults;

      change the optional redemption or repurchase provisions in a manner
      adverse to any holder; or

      modify any of the provisions set forth in this paragraph, except to
      increase the percentage of holders whose consent is required for
      modifications and amendments of the applicable indenture or to provide
      that certain other provisions of the applicable indenture may not be
      modified or waived without the consent of the holder of each outstanding
      debt security affected thereby.

     The holders of a majority in principal amount of the outstanding debt
securities of each series may, on behalf of the holders of all the debt
securities of that series, waive, insofar as that series is concerned,
compliance by us with certain restrictive provisions of the applicable
indenture. The holders of a majority in principal amount of the outstanding debt
securities of each series may, on behalf of all holders of debt securities of
that series and any coupons relating to such series, waive any past default
under the applicable indenture with respect to debt securities of the series,
except a default (a) in the payment of principal of or any premium or interest
on any debt security of such series or (b) in respect of a covenant or provision
of the applicable indenture which cannot be modified or amended without the
consent of each holder of outstanding debt securities of the affected series.

     The indentures provide that in determining whether the holders of the
requisite principal amount of the outstanding debt securities have given any
request, demand, authorization, direction, notice, consent or waiver thereunder
or whether a quorum is present at a meeting of holders of debt securities

      the principal amount of an original issue discount security that shall be
      deemed to be outstanding shall be the amount of the principal thereof that
      would be due and payable as of the date of such determination upon
      acceleration of the maturity thereof;

      the principal amount of a debt security denominated in other than U.S.
      dollars shall be the U.S. dollar equivalent, determined on the date of
      original issuance of such debt security, of the principal amount of such
      debt security (or, in the case of an original issue discount

                                       23




<PAGE>

      security, the U.S. dollar equivalent on the date of original issuance of
      such debt security of the amount determined (as provided in (a) above of
      such debt security)); and

      debt securities owned by us or any subsidiary of ours shall be disregarded
      and deemed not to be outstanding.

     In addition, we and the trustees may execute, without the consent of any
holder of the debt securities, any supplemental indenture for the purpose of
creating any new series of debt securities.

SUBORDINATION

     Except as set forth in the applicable prospectus supplement, the
subordinate indenture provides that the subordinate debt securities are
subordinate and junior in right of payment to all of our senior indebtedness.
If:

      we default in the payment of any principal of, premium, if any, or
      interest on, any senior indebtedness when the same becomes due and
      payable, whether at maturity or at a date fixed for prepayment or
      declaration or otherwise; or

      an Event of Default occurs with respect to any senior indebtedness
      permitting the holders thereof to accelerate the maturity thereof and
      written notice of such Event of Default, requesting that payments on
      subordinate debt securities cease, is given to us by the holders of senior
      indebtedness;

then unless and until the default in payment or Event of Default shall have been
cured or waived or shall have ceased to exist, no direct or indirect payment, in
cash, property or securities, by set-off or otherwise, will be made or agreed to
be made on account of the subordinate debt securities or interest thereon or in
respect of any repayment, redemption, retirement, purchase or other acquisition
of subordinate debt securities.

     Except as set forth in the applicable prospectus supplement, the
subordinate indenture provides that in the event of:

      any insolvency, bankruptcy, receivership, liquidation, reorganization,
      readjustment, composition or other similar proceeding relating to us, our
      creditors or our property;

      any proceeding for the liquidation, dissolution or other winding-up of
      CD Radio, voluntary or involuntary, whether or not involving insolvency or
      bankruptcy proceedings;

      any assignment by us for the benefit of creditors; or

      any other marshaling of our assets,

all present and future senior indebtedness, including, without limitation,
interest accruing after the commencement of the proceeding, assignment or
marshaling of assets, will first be paid in full before any payment or
distribution, whether in cash, securities or other property, will be made by us
on account of subordinate debt securities. In that event, any payment or
distribution, whether in cash, securities or other property, other than
securities of CD Radio or any other corporation provided for by a plan of
reorganization or a readjustment, the payment of which is subordinate, at least
to the extent provided in the subordination provisions of the indenture, to the
payment of all senior indebtedness at the time outstanding and to any securities
issued in respect thereof under any such plan of reorganization or readjustment
and other than payments made from any trust described in the 'Defeasance and
Covenant Defeasance' above, which would otherwise but for the subordination
provisions be payable or deliverable in respect of subordinate debt securities,
including any such payment or distribution which may be payable or deliverable
by reason of the payment of any other indebtedness of ours being subordinate to
the payment of subordinated debt securities, will be paid or delivered directly
to the holders of senior indebtedness or to their representative or trustee, in
accordance with the priorities then existing among such holders, until all
senior indebtedness shall have been paid in full. No present or future holder of
any senior indebtedness will be prejudiced in the right to enforce subordination
of the indebtedness evidenced by subordinate debt securities by any act or
failure to act on our part.

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<PAGE>

     The term 'senior indebtedness' is defined as the principal of, premium, if
any, and interest on:

      all of our indebtedness, whether outstanding on the date of the issuance
      of subordinate debt securities or thereafter created, incurred or assumed,
      which is for money borrowed, or which is evidenced by a note or similar
      instrument given in connection with the acquisition of any business,
      properties or assets, including securities;

      any such indebtedness of others for the payment of which we are
      responsible or liable as guarantor or otherwise; and

      amendments, renewals, extensions and refundings of any such indebtedness;

unless in any instrument or instrument evidencing or securing such indebtedness
or pursuant to which the same is outstanding, or in any such amendment, renewal,
extension or refunding, it is expressly provided that such indebtedness is not
superior in right of payment to subordinated debt securities. The senior
indebtedness will continue to be senior indebtedness and entitled to the
benefits of the subordination provisions irrespective of any amendment,
modification or waiver of any term of the senior indebtedness or extension or
renewal of the senior indebtedness.

     Except as provided in the applicable prospectus supplement, the subordinate
indenture for a series of subordinated debt does not limit the aggregate amount
of senior indebtedness that may be issued by us. The subordinate debt securities
are effectively subordinated to all existing and future liabilities of our
subsidiaries.

     By reason of such subordination, in the event of a distribution of assets
upon insolvency, some of our general creditors may recover more, ratably, than
holders of the subordinated debt securities.

     A subordinate indenture may provide that the subordination provisions
thereof will not apply to money and securities held in trust pursuant to the
satisfaction and discharge and the legal defeasance provisions of the
subordinate indenture.

     If this prospectus is being delivered in connection with the offering of a
series of subordinated debt securities, the accompanying prospectus supplement
or the information incorporated by reference therein will set forth the
approximate amount of senior indebtedness outstanding as of a recent date.

CONSOLIDATION, MERGER AND SALE OF ASSETS

     Except as may otherwise be provided in the prospectus supplement, each
indenture provides that we may not consolidate with or merge with or into any
person, or convey, transfer or lease all or substantially all of its assets, or
permit any person to consolidate with or merge into us, unless the following
conditions have been satisfied:

     (a) either (1) we shall be the continuing person in the case of a merger or
         (2) the resulting, surviving or transferee person, if other than us
         (the 'Successor Company'), shall be a corporation organized and
         existing under the laws of the United States, any State or the District
         of Columbia and shall expressly assume all our obligations under the
         debt securities and the applicable indenture;

     (b) immediately after giving effect to the transaction (and treating any
         indebtedness that becomes an obligation of the Successor Company or any
         subsidiary of ours as a result of the transaction as having been
         incurred by the Successor Company or the subsidiary at the time of the
         transaction), no default, Event of Default or event that, after notice
         or lapse of time, would become an Event of Default under the applicable
         indenture shall have occurred and be continuing; and

     (c) we shall have delivered to the trustee under each indenture an
         officers' certificate and an opinion of counsel, each stating that the
         consolidation, merger, transfer or lease complies with the provisions
         of the applicable indenture.

     Upon completion of any such transaction, the Successor Company resulting
from such consolidation or into which we are merged or the transferee or lessee
to which such conveyance,

                                       25




<PAGE>

transfer or lease is made, will succeed to, and be substituted for, and may
exercise every right and power of, us under each indenture, and thereafter,
except in the case of a lease, the predecessor (if still in existence) will be
released from its obligations and covenants under each indenture and all
outstanding debt securities.

NOTICES

     Except as otherwise provided in the indentures, notices to holders of debt
securities will be given by mail to the addresses of such holders as they appear
in the Security Register.

CONVERSION OR EXCHANGE

     If and to the extent indicated in the applicable prospectus supplement, the
debt securities of any series may be convertible or exchangeable into other
securities. The specific terms on which debt securities of any series may be so
converted or exchanged will be set forth in the applicable prospectus
supplement. These terms may include provisions for conversion or exchange,
either mandatory, at the option of the holder, or at our option, in which case
the number of shares of other securities to be received by the holders of debt
securities would be calculated as of a time and in the manner stated in the
applicable prospectus supplement.

TITLE

     Before due presentment of a debt security for registration of transfer, we,
the trustee and any agent of ours or the trustee may treat the person in whose
name such debt security is registered as the owner of such debt security for the
purpose of receiving payment of principal of and any premium and any interest
(other than defaulted interest or as otherwise provided in the applicable
prospectus supplement) on such debt security and for all other purposes
whatsoever, whether or not such debt security be overdue, and neither CD Radio,
the trustee nor any agent of ours or the trustee shall be affected by notice to
the contrary.

REPLACEMENT OF DEBT SECURITIES

     Any mutilated debt security will be replaced by us at the expense of the
holder upon surrender of such debt security to the trustee. Debt securities that
become destroyed, stolen or lost will be replaced by us at the expense of the
holder upon delivery to the trustee of the debt security or evidence of the
destruction, loss or theft thereof satisfactory to us and the trustee. In the
case of a destroyed, lost or stolen debt security, an indemnity satisfactory to
the trustee and us may be required at the expense of the holder of such debt
security before a replacement debt security will be issued.

GOVERNING LAW

     The indentures and the debt securities will be governed by, and construed
in accordance with, the laws of the State of New York.

REGARDING THE TRUSTEE

     We may appoint a separate trustee for any series of debt securities. As
used herein in the description of a series of debt securities, the term
'trustee' refers to the trustee appointed with respect to the series of debt
securities.

     The indentures contain certain limitations on the right of the trustee,
should it become a creditor of ours, to obtain payment of claims in certain
cases or to realize for its own account on certain property received in respect
of any such claim as security or otherwise. The trustee will be permitted to
engage in certain other transactions; however, if it acquires any conflicting
interest and there is a default under the debt securities of any series for
which the trustee serves as trustee, the trustee must eliminate such conflict or
resign.

     The trustee or its affiliate may provide certain banking and financial
services to us in the ordinary course of business.

                                       26





<PAGE>

                          DESCRIPTION OF CAPITAL STOCK

     Our amended and restated certificate of incorporation provides for
authorized capital of 250,000,000 shares, consisting of 200,000,000 shares of
common stock, par value $0.001 per share, and 50,000,000 shares of preferred
stock, par value $0.001 per share.

     The following description sets forth the terms and provisions of our common
stock, preferred stock and of certain classes of preferred stock which have been
authorized by the board of directors. The terms of any shares of our capital
stock offered by any prospectus supplement, but not set forth below, will be
described in the prospectus supplement relating to such shares of capital stock.

COMMON STOCK

     As of August 9, 1999, we had 23,341,731 shares of common stock outstanding
held of record by 232 persons, and had reserved for issuance 41,556,719 shares
of common stock with respect to incentive stock plans, outstanding common stock
purchase warrants and conversion of the Series C Preferred Stock and Junior
Preferred Stock.

     Holders of the common stock are entitled to cast one vote for each share
held of record on all matters acted upon at any stockholder's meeting and to
receive dividends if, as and when declared by the Board of Directors out of
funds legally available therefor. There are no cumulative voting rights. If
there is any liquidation, dissolution or winding-up of our company, each holder
of our common stock will be entitled to participate, taking into account the
rights of any outstanding Preferred Stock, ratably in all of our assets
remaining after payment of liabilities. Holders of our common stock have no
preemptive or conversion rights. All outstanding shares of common stock,
including shares of common stock issued upon the exercise of the common stock
warrants, will be fully paid and non-assessable.

     Our common stock is quoted on the Nasdaq National Market under the symbol
'CDRD.'

PREFERRED STOCK

     The board of directors is authorized, subject to any limitations prescribed
by law, without further stockholder approval, to issue from time to time up to
an aggregate of 50,000,000 shares of our preferred stock, in one or more series.
Each such series of preferred stock shall have such number of shares,
designations, preferences, powers, qualifications and special or relative rights
or privileges as shall be determined by the board of directors, which may
include, among others, dividend rights, voting rights, redemption and sinking
fund provisions, liquidation preferences, conversion rights and preemptive
rights. The rights of the holders of common stock will be subject to the rights
of holders of any preferred stock issued in the future. The issuance of
preferred stock, while providing desirable flexibility in connection with
possible acquisitions and other corporate purposes, could have the effect of
making it more difficult for a third party to acquire, or of discouraging a
third party from acquiring, a majority of our outstanding voting stock.

     The specific terms of any preferred stock being offered will be described
in the prospectus supplement relating to that preferred stock. The following
summaries of the provisions of the preferred stock are subject to, and are
qualified in their entirety by reference to, the certificate of designation
relating to the particular class or series of preferred stock. Reference is made
to the prospectus supplement relating to the preferred stock offered with that
prospectus for specific terms, including:

      the designation of the preferred stock;

      the number of shares of the preferred stock offered, the liquidation
      preference per share and the initial offering price of the preferred
      stock;

      the dividend rate(s), period(s) and/or payment date(s) or method(s) of
      calculation these items applicable to the preferred stock;

      the date from which dividends on the preferred stock shall accumulate, if
      applicable;

                                       27




<PAGE>

      the procedures for any auction and remarketing of the preferred stock;

      the provision of a sinking fund, if any, for the preferred stock;

      the provision for redemption, if applicable, of the preferred stock;

      any listing of the preferred stock on any securities exchange;

      the terms and conditions, if applicable, upon which the preferred stock
      will be convertible into or exchangeable for common stock, and whether at
      our option or the option of the holder;

      whether the preferred stock will rank senior or junior to or on a parity
      with any other class or series of preferred stock;

      the voting rights, if any, of the preferred stock;

      any other specific terms, preference, rights, limitations or restrictions
      of the preferred stock; and

      a discussion of United States federal income tax considerations applicable
      to the preferred stock.

PREFERRED STOCK PURCHASE RIGHTS

     On October 22, 1997, the board of directors adopted a stockholders rights
plan and, in connection with the adoption of this plan, declared a dividend
distribution of one 'Right' for each outstanding share of common stock to
stockholders of record at the close of business on November 3, 1997 (the 'Rights
Record Date'). Except as described below, each Right entitles the registered
holder of the Right to purchase from us one-hundredth of a share of Series B
Preferred Stock, par value $0.001 per share (the 'Series B Shares'), at a
purchase price of $115.00 (the 'Purchase Price'), which may be adjusted. The
Purchase Price shall be paid in cash. The description and terms of the Rights
are set forth in a Rights Agreement, dated October 22, 1997 (the 'Rights
Agreement'), by and between us and Continental Stock Transfer & Trust Company,
as Rights Agent, and in amendments to the Rights Agreement dated October 13,
1998, November 13, 1998, December 22, 1998 and June 11, 1999.

     On October 13, 1998, we amended the Rights Agreement to make it
inapplicable to the purchase of 5,000,000 shares of common stock by Prime 66 and
to allow Prime 66 to purchase and own up to an additional 1% of the outstanding
shares of common stock without Prime 66 becoming an 'Acquiring Person' within
the meaning of the Rights Agreement. On November 13, 1998 and December 22, 1998,
we amended the Rights Agreement to render it inapplicable to the purchase of the
Junior Preferred Stock by the Apollo Investors and to permit the Apollo
Investors to (1) acquire additional shares of Junior Preferred Stock issued as
dividends declared on the Junior Preferred Stock, (2) acquire additional shares
of common stock upon the conversion of shares of Junior Preferred Stock into
shares of common stock, or (3) acquire up to an additional 1% of the outstanding
shares of common stock, without the Apollo Investors becoming 'Acquiring
Persons' within the meaning of the Rights Agreement. On June 11, 1999, we also
amended the Rights Agreement to make it inapplicable to the issuance of warrants
entitling Ford Motor Company ('Ford') to acquire from us 4,000,000 shares of our
common stock.

     Initially, no separate Right certificates will be distributed and the
Rights will be evidenced, with respect to any shares of common stock outstanding
on the Rights Record Date, by the certificates representing the shares of common
stock. Until the Rights Separation Date (as defined below), the Rights will be
transferred with, and only with, certificates for shares of common stock. Until
the earlier of the Rights Separation Date and the redemption or expiration of
the Rights, new certificates for shares of common stock issued after the Rights
Record Date will contain a notation incorporating the Rights Agreement by
reference. The Rights are not exercisable until the earlier to occur of (1) 10
business days following a public announcement that a person or group of
affiliated or associated persons (an 'Acquiring Person') has acquired, or
obtained the right to acquire, beneficial ownership of 15% or more of the
outstanding shares of common stock (except by reason of (a) exercise by this
person of stock options granted to this person by us under any

                                       28




<PAGE>

of our stock option or similar plans (b) the exercise of conversion rights
contained in specified classes of Preferred Stock, or (c) the exercise of
warrants owned on the date of the Rights Agreement, which include warrants to
acquire 1,740,000 shares of common stock issued to an affiliate of Everest
Capital Fund, Ltd. or (2) 15 business days following the commencement of a
tender offer or exchange offer by any person (other than CD Radio, any
subsidiary of CD Radio or any employee benefit plan of CD Radio) if, upon the
completion of this tender offer or exchange offer, this person or group would be
the beneficial owner of 15% or more of the outstanding shares of common stock
(the earlier of these dates being called the 'Rights Separation Date'), and will
expire on October 22, 2002, unless earlier redeemed by us as described below. As
soon as practicable following the Rights Separation Date, separate certificates
evidencing the Rights will be mailed to holders of record of the shares of
common stock as of the close of business on the Rights Separation Date and,
thereafter, the separate Rights certificates alone will evidence the Rights. A
holder of 15% or more of the common stock as of the date of the Rights Agreement
will be excluded from the definition of 'Acquiring Person' unless the holder
increases the aggregate percentage of its and its affiliates' beneficial
ownership interest in us by an additional 1%.

     If, at any time following the Rights Separation Date, (1) we are the
surviving corporation in a merger with an Acquiring Person and our shares of
common stock are not changed or exchanged, (2) a person (other than CD Radio,
any subsidiary of CD Radio or any employee benefit plan of CD Radio), together
with its Affiliates and Associates (as defined in the Rights Agreement), becomes
an Acquiring Person (in any manner, except by (a) the exercise of stock options
granted under our existing and future stock option plans, (b) the exercise of
conversion rights contained in specified Preferred Stock issues, (c) the
exercise of warrants specified in the Rights Agreement or (d) a tender offer for
any and all outstanding shares of common stock made as provided by applicable
laws, which remains open for at least 40 Business Days (as defined in the Rights
Agreement) and into which holders of 80% or more of our outstanding shares of
common stock tender their shares), (3) an Acquiring Person engages in one or
more 'self-dealing' transactions as described in the Rights Agreement or
(4) during the time when there is an Acquiring Person, an event occurs (e.g., a
reverse stock split), that results in the Acquiring Person's ownership interest
being increased by more than one percent, the Rights Agreement provides that
proper provision shall be made so that each holder of a Right will thereafter be
entitled to receive, upon the exercise of the Right at the then current exercise
price of the Right, shares of common stock (or, in some circumstances, cash,
property or other securities of ours) having a value equal to two times the
exercise price of the Right.

     If, at any time following the first date of public announcement by us or an
Acquiring Person indicating that this Acquiring Person has become an Acquiring
Person (the 'Shares Acquisition Date'), (1) we consolidate or merge with another
person and we are not the surviving corporation, (2) we consolidate or merge
with another person and are the surviving corporation, but in the transaction
our shares of common stock are changed or exchanged or (3) 50% or more of our
assets or earning power is sold or transferred, the Rights Agreement provides
that proper provision shall be made so that each holder of a Right shall
thereafter have the right to receive, upon the exercise of the Right at the then
current exercise price of the Right, shares of common stock of the acquiring
company having a value equal to two times the exercise price of the Right.

     The board of directors may, at its option, at any time after the right of
the board to redeem the Rights has expired or terminated (with some exceptions),
exchange all or part of the then outstanding and exercisable Rights (other than
those held by the Acquiring Person and Affiliates and Associates of the
Acquiring Person) for shares of common stock at a ratio of one share of common
stock per Right, as adjusted; provided, however, that the Right cannot be
exercised once a person, together with the person's Affiliates and Associates,
becomes the beneficial owner of 50% or more of the shares of common stock then
outstanding. If the board authorizes this exchange, the Rights will immediately
cease to be exercisable.

     Notwithstanding any of the foregoing, following the occurrence of any of
the events described in the fourth and fifth paragraphs of this section, any
Rights that are, or (under some

                                       29




<PAGE>

circumstances specified in the Rights Agreement) were, beneficially owned by any
Acquiring Person or Affiliate or Associate of an Acquiring Person shall
immediately become null and void. The Rights Agreement contains provisions
intended to prevent the utilization of voting trusts or similar arrangements
(except for the voting arrangement between Darlene Friedland, David Margolese
and us) that could have the effect of rendering ineffective or circumventing the
beneficial ownership rules described in the Rights Agreement.

     The Purchase Price payable, and the number of Series B Shares or other
securities or property issuable, upon exercise of the Rights may be adjusted
from time to time to prevent dilution (1) in the event of a dividend of
Series B Shares on, or a subdivision, combination or reclassification of, the
Series B Shares, (2) upon the grant to holders of the Series B Shares of
specific rights or warrants to subscribe for Series B Shares or securities
convertible into Series B Shares at less than the current market price of the
Series B Shares or (3) upon the distribution to holders of the Series B Shares
of debt securities or assets (excluding regular quarterly cash dividends and
dividends payable in Series B Shares) or of subscription rights or warrants
(other than those referred to above).

     At any time after the date of the Rights Agreement until ten Business Days
(a period that can be extended) following the Shares Acquisition Date, the board
of directors, with the concurrence of a majority of the independent directors
(those members of the Board who are not officers or employees of ours or of any
subsidiary of ours and who are not Acquiring Persons or their Affiliates,
Associates, nominees or representatives, and who either (1) were members of the
board before the adoption of the Rights Plan or (2) were subsequently elected to
the board and were recommended for election or approved by a majority of the
independent directors then on the board), may redeem the Rights, in whole but
not in part, at a price of $0.01 per Right, which may be adjusted. Thereafter,
the board may redeem the Rights only in specified circumstances including in
connection with specific events not involving an Acquiring Person or an
Affiliate or Associate of an Acquiring Person. In addition, our right of
redemption may be reinstated if (1) an Acquiring Person reduces its beneficial
ownership to 10% or less of the outstanding shares of common stock in a
transaction or series of transactions not involving us and (2) there is at the
time no other Acquiring Person. The Rights Agreement may also be amended, as
described below, to extend the period of redemption.

     Until a Right is exercised, the holder of the Right, as such, will have no
rights as a stockholder, including the right to vote or to receive dividends.
While the distribution of the Rights will not be taxable to stockholders or to
us, stockholders may, depending upon the circumstances, recognize taxable income
if the Rights become exercisable for shares of our common stock (or other
consideration) or for shares of common stock of the Acquiring Person.

     Other than those provisions relating to the principal economic terms of the
Rights or imposing limitations on the right to amend the Rights Agreement, any
of the provisions of the Rights Agreement may be amended by the board with the
concurrence of a majority of the independent directors or by special approval of
our stockholders before the Rights Separation Date. Thereafter, the period
during which the Rights may be redeemed may be extended (by action of the board,
with the concurrence of a majority of the independent directors or by special
approval of our stockholders), and other provisions of the Rights Agreement may
be amended by action of the Board with the concurrence of a majority of the
independent directors or by special approval of our stockholders; provided,
however, that (a) this amendment will not adversely affect the interests of
holders of Rights (excluding the interests of any Acquiring Person) and (b) no
amendment shall be made at a time when the Rights are no longer redeemable
(except for the possibility of the right of redemption being reinstated as
described above).

DELAWARE ANTI-TAKEOVER LAW AND PROVISIONS IN OUR CHARTER

     Section 203 of the Delaware General Corporation Law ('Section 203')
generally provides that a stockholder acquiring more than 15% of the outstanding
voting stock of a corporation subject to the statute (an 'Interested
Stockholder') but less than 85% of this stock may not engage in some types of
Business Combinations (as defined in Section 203) with the corporation for a
period of

                                       30




<PAGE>

three years after the time the stockholder became an Interested Stockholder. The
prohibition of Section 203 does not apply under the following circumstances:

          (1) before the time of the acquisition, the corporation's board of
     directors approved either the Business Combination or the transaction in
     which the stockholder became an Interested Stockholder; or

          (2) the Business Combination is approved by the corporation's board of
     directors and authorized at a stockholders' meeting by a vote of at least
     two-thirds of the corporation's outstanding voting stock not owned by the
     Interested Stockholder.

     Under Section 203, these restrictions will not apply to specific Business
Combinations proposed by an Interested Stockholder following the earlier of the
announcement or notification of specific extraordinary transactions involving
the corporation and a person who was not an Interested Stockholder during the
previous three years, who became an Interested Stockholder with the approval of
the corporation's board of directors or who became an Interested Stockholder at
a time when the restrictions contained in Section 203 did not apply for reasons
specified in Section 203. The above exception applies if the extraordinary
transaction is approved or not opposed by a majority of the directors who were
directors prior to the person becoming an Interested Stockholder during the
previous three years or were recommended for election or elected to succeed
those directors by a majority of those directors.

     Section 203 defines the term 'Business Combination' to encompass a wide
variety of transactions with or caused by an Interested Stockholder. These
include transactions in which the Interested Stockholder receives or could
receive a benefit on other than a pro rata basis with other stockholders,
transactions with the corporation which increase the proportionate interest in
the corporation directly or indirectly owned by the Interested Stockholder or
transactions in which the Interested Stockholder receives other benefits.

     The provisions of Section 203, coupled with our board of director's
authority to issue preferred stock without further stockholder action, could
delay or frustrate the removal of incumbent directors or a change in our
control. The provisions could also discourage, impede or prevent a merger,
tender offer or proxy contest, even if the event would be favorable to the
interests of stockholders. Our stockholders, by adopting an amendment to our
amended and restated certificate of incorporation, may elect not to be governed
by Section 203 effective 12 months after the adoption. Neither our certificate
of incorporation nor our by-laws exclude us from the restrictions imposed by
Section 203.

10 1/2% SERIES C CONVERTIBLE PREFERRED STOCK

     The board of directors has authorized the issuance of up to 2,025,000
shares of the Series C Preferred Stock.

     General. The following description of our Series C Preferred Stock does not
purport to be complete and is qualified in its entirety by the provisions of our
amended and restated certificate of incorporation, and the certificate of
designations relating to the Series C Preferred Stock, each of which is
available on request.

     Rank. The Series C Preferred Stock, with respect to dividend rights and
rights upon liquidation, winding-up or dissolution, ranks (1) senior and before
the common stock and to any other stock issued by us designated as junior to the
Series C Preferred Stock and (2) equally with any class or series of our stock,
the terms of which do not designate the class or series as either junior or
senior to the Series C Preferred Stock.

     Dividends. The annual dividend rate per share of the Series C Preferred
Stock is an amount equal to 10.5% of the sum of (x) the liquidation preference
of the Series C Preferred Stock and (y) all accrued and unpaid dividends, if
any, whether or not declared, from the date of issuance of the shares of
Series C Preferred Stock to the applicable dividend payment date. Dividends on
the shares of Series C Preferred Stock are cumulative, accruing quarterly and,
when and as declared by our board of directors, are payable quarterly initially
on November 15, 2002 (the 'First

                                       31




<PAGE>

Scheduled Dividend Payment Date') and on February 15, May 15, August 15 and
November 15 of each year (each, a 'Dividend Payment Date') thereafter. In
addition, accrued dividends on the shares of Series C Preferred Stock will be
paid on the redemption date of any share of Series C Preferred Stock redeemed by
us, on the purchase date of any share of Series C Preferred Stock purchased by
us in an Offer to Purchase (defined below) or on the conversion date of any
share of Series C Preferred Stock converted into shares of common stock on or
after the First Scheduled Dividend Payment Date. No accrued dividends will be
paid on any shares of Series C Preferred Stock that are converted by the holders
of the Series C Preferred Stock before the First Scheduled Dividend Payment
Date, unless these shares of Series C Preferred Stock are converted on or before
a redemption date by holders of the Series C Preferred Stock electing to convert
these shares after having received a notice of redemption for these shares.
Dividends may be paid in cash, shares of common stock or any combination of cash
and common stock, at our option. Common stock issued to pay dividends will be
valued at the average closing price of the common stock as reported in The Wall
Street Journal for the 20 consecutive trading days immediately preceding the
date of the payment. Dividends with respect to any share of Series C Preferred
Stock accumulate from November 15, 1997.

     If and so long as any full cumulative dividends payable on the shares of
Series C Preferred Stock in respect of all prior dividend periods will not have
been paid or set apart for payment, we will not pay any dividends or make any
distributions of assets on or redeem, purchase or otherwise acquire for
consideration shares of our capital stock ranking junior to or on a par with the
Series C Preferred Stock in payment of dividends.

     Dividends on the shares of Series C Preferred Stock are payable to the
holders of record of Series C Preferred Stock as they appear on our stock
register on a record date, not more than 40 days nor fewer than 10 days
preceding the payment date of the dividends, as will be fixed by the board of
directors. Dividends on account of arrears for any past dividend periods may be
declared and paid at any time, without reference to any Dividend Payment Date,
to the holders of record on a date, not exceeding 40 days nor less than 10 days
preceding the payment date of the dividends, as may be fixed by the board of
directors. Dividends paid in cash will be paid to each holder of record in
United States dollars by check mailed to the holder at its address appearing on
our books. Any shares of common stock issued, at our option, to pay any
dividends on shares of Series C Preferred Stock will thereupon be duly
authorized, validly issued, fully paid and non-assessable. No fractional shares
of common stock will be issued as dividends.

     Redemption. Except as described below, the shares of Series C Preferred
Stock may not be redeemed by us at our option before November 15, 2002. From and
after November 15, 1999 and before November 15, 2002, we may redeem shares of
Series C Preferred Stock, in whole or in part, at any time at a redemption price
of 100% of the liquidation preference of the shares of Series C Preferred Stock
redeemed, plus accrued and unpaid dividends, if any, whether or not declared, to
the redemption date, if the average closing price of the common stock as
reported in The Wall Street Journal for the 20 consecutive trading days before
the notice of redemption of the Series C Preferred Stock equals or exceeds
$31.50 per share, as adjusted. From and after November 15, 2002, we may redeem
shares of Series C Preferred Stock, in whole or in part, at the following
redemption prices per share, expressed as percentages of the liquidation
preference of Series C Preferred Stock, if redeemed during the 12-month period
beginning November 15 in the year indicated below:

<TABLE>
<CAPTION>
YEAR                                               PERCENTAGE
- ----                                               ----------
<S>                                                <C>
2002.............................................   105.25%
2003.............................................   102.63%
2004.............................................   101.81%
2005 and thereafter..............................   100.00%
</TABLE>

plus, in each case, accrued and unpaid dividends, if any, to the redemption
date.

     On November 15, 2012 (the 'Mandatory Redemption Date'), the Company is
required to redeem all outstanding shares of Series C Preferred Stock at a
redemption price of 100% of the

                                       32


<PAGE>

liquidation preference of the shares of Series C Preferred Stock, plus accrued
and unpaid dividends, if any, whether or not declared, to the Mandatory
Redemption Date.

     The amount paid to the holders of shares of Series C Preferred Stock upon
redemption which is allocable to the liquidation preference of the shares of
Series C Preferred Stock shall be paid in cash and the amount of any accrued and
unpaid dividends to be paid on the shares of Series C Preferred Stock redeemed
shall be paid in cash, shares of common stock or any combination of cash and
common stock at our option.

     We are required to give notice of any proposed redemption of shares of
Series C Preferred Stock on a date that is not less than 15 days nor more than
40 days (as determined by us, the 'Redemption Record Date') before the date of
redemption, to the holders of record on the Redemption Record Date of the shares
to be redeemed at their addresses appearing on our books. Each notice will
specify the shares of Series C Preferred Stock called for redemption, the
redemption price and the time, place and date of redemption. Neither failure to
mail the notice, nor any defect in the notice or in the mailing of the notice,
to any particular holder shall affect the sufficiency of the notice or the
validity of the proceedings for redemption with respect to the other holders. On
or after the redemption date, each holder of shares of Series C Preferred Stock
being redeemed will present and surrender the holder's certificate or
certificates evidencing the shares to us at the place described in the
redemption notice, whereupon we will cancel the shares and will pay to the
holders the redemption price for the surrendered shares, plus accrued and unpaid
dividends, if any, to the redemption date. If fewer than all the shares of
Series C Preferred Stock represented by any holder's certificate are redeemed,
we will issue a new certificate representing the unredeemed shares of Series C
Preferred Stock.

     If fewer than all of the outstanding shares of Series C Preferred Stock are
being redeemed, the shares to be redeemed will be selected proportionately or by
lot or in another manner as our board of directors may determine, provided that
only whole shares shall be selected for redemption.

     Any shares of Series C Preferred Stock which have been called for
redemption may be converted into shares of common stock before being redeemed
provided that the holder of the Series C Preferred Stock gives written notice to
us, before the close of business on the business day immediately preceding the
date of redemption, of the holder's election to convert shares of Series C
Preferred Stock into shares of common stock, together with the certificate or
certificates evidencing the shares, duly endorsed or assigned to us, and any
necessary transfer tax payment as described below. See ' -- Conversion.'

     Change in Control. Upon the occurrence of a Change in Control, we must make
an offer to purchase (an 'Offer to Purchase') all then outstanding shares of
Series C Preferred Stock at a purchase price (the 'Change in Control Purchase
Price') in cash equal to 101% of their liquidation preference, plus all accrued
and unpaid dividends (paid in cash), if any, whether or not declared, to the
date the shares are purchased (the 'Change in Control Purchase Date'). A 'Change
in Control' is defined as the occurrence of any of the following events:

      any 'person' or 'group' (as these terms are used in Sections 13(d) and
      14(d) of the Exchange Act), other than Loral, Arianespace or David
      Margolese, is or becomes the 'beneficial owner' (as defined in
      Rules 13d-3 and 13d-5 under the Exchange Act, except that a person shall
      be deemed to have 'beneficial ownership' of all securities that the person
      has the right to acquire, whether this right is exercisable immediately or
      only after the passage of time), directly or indirectly, of more than 40%
      of our total outstanding voting stock;

      we consolidate with, or merge with or into another person or convey,
      transfer, lease or otherwise dispose of all or substantially all of our
      assets to any person, or any person consolidates with or merges with or
      into us, in a transaction in which our outstanding voting stock is
      converted into or exchanged for cash, securities or other property, other
      than, at all times when our senior discount notes are outstanding, those
      transactions that are not deemed a 'Change of Control' under the terms of
      the indenture relating to our senior discount notes;

                                       33


<PAGE>

      during any consecutive two-year period, individuals who at the beginning
      of the period constituted our board of directors (together with any new
      directors whose election to the board of directors, or whose nomination
      for election by our stockholders, was approved by a vote of 66 2/3% of the
      directors then still in office who were either directors at the beginning
      of the period or whose election or nomination for election was previously
      so approved) cease for any reason to constitute a majority of our board of
      directors then in office; or

      we are liquidated or dissolved or a special resolution is passed by our
      stockholders approving the plan of liquidation or dissolution,

other than, at all times when our senior discount notes are outstanding, those
transactions that are not deemed a 'Change of Control' under the terms of the
indenture relating to our senior discount notes.

     Within 30 days following any Change in Control, we must give written notice
of the Change in Control to each holder of shares of Series C Preferred Stock by
first-class mail, postage prepaid, at his address appearing in our stock
register, stating the purchase price and that the purchase date shall be a
business day no earlier than 30 days nor later than 60 days from the date the
notice is mailed, or a later date if necessary to comply with requirements under
the Exchange Act; that any shares of Series C Preferred Stock not tendered will
continue to accumulate dividends; that, unless we default in the payment of the
purchase price, any shares of Series C Preferred Stock accepted for payment
under the Offer to Purchase shall cease to accumulate dividends after the Change
in Control Purchase Date; and other specific procedures that a holder of shares
of Series C Preferred Stock must follow to accept an Offer to Purchase or to
withdraw acceptance of an Offer to Purchase.

     If an Offer to Purchase is made, we cannot assure you that we will have
available funds sufficient to pay the Change in Control Purchase Price for any
or all of the shares of Series C Preferred Stock that might be delivered by
holders of Series C Preferred Stock seeking to accept the Offer to Purchase and,
accordingly, if there is a Change of Control, none of the holders of the shares
of Series C Preferred Stock may receive the Change in Control Purchase Price for
their Series C Preferred Stock.

     The existence of a holder's right to require us to repurchase the holder's
Series C Preferred Stock upon a Change in Control may deter a third party from
acquiring us in a transaction which constitutes a Change in Control.
Furthermore, the possibility that a third party would be deterred from acquiring
us may have an adverse effect on the market price of our Series C Preferred
Stock.

     We will comply with the applicable tender offer rules, including
Rule 14e-1 under the Exchange Act, and any other applicable securities laws or
regulations in connection with an Offer to Purchase.

     Conversion. Each share of Series C Preferred Stock may be converted at any
time, at the option of the holder, unless previously redeemed, into a number of
shares of common stock calculated by dividing the liquidation preference of the
Series C Preferred Stock (without accrued and unpaid dividends) by a conversion
price equal to $18 (the 'Conversion Price'). The Conversion Price will not be
adjusted at any time for accrued and unpaid dividends on the shares of Series C
Preferred Stock, but will be adjusted for the occurrence of specified corporate
events affecting the common stock. Upon conversion, at any time after the First
Scheduled Dividend Payment Date, holders of the Series C Preferred Stock will be
entitled to receive all accrued and unpaid dividends upon the shares of
Series C Preferred Stock converted payable in cash or shares of common stock, or
a combination of cash and common stock, at our option. No accrued dividends will
be paid on any shares of Series C Preferred Stock that are converted by their
holders before the First Scheduled Dividend Payment Date, unless these shares of
Series C Preferred Stock are converted before a redemption date by their holders
electing to convert these shares after having received a notice of redemption
for these shares. Common stock issued to pay

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dividends will be valued at the average closing price of the common stock as
reported in The Wall Street Journal for the 20 consecutive trading days
immediately preceding the date of payment.

     To convert shares of Series C Preferred Stock into common stock, the
registered holder of the shares of Series C Preferred Stock must give written
notice to us that it elects to convert these shares and surrender at the office
of the transfer agent, or at another office or offices, if any, as the board of
directors may designate, the certificate or certificates therefor, duly endorsed
or assigned to us or in blank, together with any payment for stamp or similar
taxes that may be required to be paid by the holder, as described below.

     Shares of Series C Preferred Stock will be deemed to have been converted
immediately before the close of business on the day of the surrender of the
shares for conversion, and the person or persons entitled to receive the common
stock issuable upon the conversion will be treated for all purposes as the
record holder or holders of the common stock at that time. As promptly as
practicable on or after the conversion date, we will issue and deliver a
certificate or certificates for the number of full shares of common stock
issuable upon the conversion, together with any payment instead of issuing any
fractional shares of common stock, to the person or persons entitled to receive
the same. In case shares of Series C Preferred Stock are called for redemption,
the right to convert the shares will terminate at the close of business on the
business day immediately preceding the redemption date, unless default shall be
made in payment of the redemption price.

     The Conversion Price for shares of Series C Preferred Stock will be
adjusted in some events, including (1) dividends and other distributions payable
in common stock on any class of our capital stock, (2) the issuance to all
holders of common stock of rights or warrants entitling them to subscribe for or
purchase common stock at less than fair market value, (3) subdivisions,
combinations and reclassifications of the common stock, (4) distributions to all
holders of common stock of evidences of our indebtedness or assets and (5) a
consolidation or merger to which we are a party or the sale or transfer of all
or substantially all of our assets.

     We will pay any and all stamp or other similar taxes that may be payable in
respect of the issue or delivery of shares of common stock upon conversion of
shares of Series C Preferred Stock. We will not, however, be required to pay any
tax which may be payable in respect of any transfer involved in the issue and
delivery of shares of common stock in a name other than that in which the shares
of Series C Preferred Stock so converted or exchanged were registered, and this
issue or delivery will not be made unless and until the person requesting this
issue has paid to us the amount of this tax, if any, or has established to our
satisfaction that this tax has been paid. All shares of common stock issued upon
conversion of shares of Series C Preferred Stock shall be validly issued, fully
paid and nonassessable.

     Voting Rights. Other than the consent rights described below with respect
to some corporate actions, and except as otherwise provided by applicable law,
holders of shares of Series C Preferred Stock have no voting rights. Consent of
the holders of a majority of the outstanding shares of Series C Preferred Stock
will be required before we may take some corporate actions, including (1) any
amendment, alteration or repeal of any of the provisions of our certificate of
incorporation or by-laws which affects adversely the voting powers, rights or
preferences of the holders of the shares of Series C Preferred Stock, (2) the
authorization or creation of, or the increase in authorized amount of, any
shares of any class or series of equity securities that ranks senior to or on a
parity with the Series C Preferred Stock with respect to dividend rights and
rights upon liquidation, winding-up or dissolution and (3) merging or
consolidating with or into any other entity, unless the resulting corporation
will thereafter have no class or series of shares and no other securities either
authorized or outstanding ranking before, or on a parity with, the Series C
Preferred Stock in the payment of dividends or the distribution of its assets on
liquidation, dissolution or winding-up. In addition, if (1) after the First
Scheduled Dividend Payment Date, dividends payable on the shares of Series C
Preferred Stock shall be in arrears in an aggregate amount equal to at least six
quarterly dividend payments, (2) we fail to redeem all of the outstanding shares
of Series C Preferred Stock on the Mandatory Redemption Date, or (3) we fail to
make an Offer to Purchase upon a Change in Control, the

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<PAGE>

holders of a majority of the outstanding shares of Series C Preferred Stock,
voting as a class, will be entitled to elect (a) one director if there are seven
or less directors on the board of directors at the time or (b) two directors if
there are eight or more directors on the board of directors at the time.

     In exercising these voting rights or when otherwise granted voting rights
by operation of law, each share of Series C Preferred Stock will be entitled to
one vote per share.

     No consent of the holders of the Series C Preferred Stock is required for
(1) the creation by us of any indebtedness of any kind or (2) the authorization
or issuance of any class of our capital stock ranking junior to the Series C
Preferred Stock in payment of dividends or upon our liquidation, dissolution or
winding-up.

     Liquidation. If there is any voluntary or involuntary liquidation,
dissolution or winding-up of us, before any distribution of our assets to the
holders of shares of common stock or any other capital stock of ours ranking
junior to the Series C Preferred Stock upon our liquidation, dissolution or
winding-up, the holders of shares of Series C Preferred Stock will be entitled
to receive out of our assets available for distribution to our stockholders,
whether from capital, surplus or earnings, an amount per share of Series C
Preferred Stock equal to $100, plus accrued and unpaid dividends on the share of
Series C Preferred Stock, if any, to the date of final distribution.

     If there is any voluntary or involuntary liquidation, dissolution or
winding-up of us, before any distribution of our assets to the holders of shares
of Series C Preferred Stock or any capital stock of ours ranking equally with
the shares of Series C Preferred Stock, the holders of any shares of capital
stock ranking senior to the Series C Preferred Stock shall be entitled to
receive out of our assets available for distribution to our stockholders,
whether from capital, surplus or earnings, an amount per share of the senior
stock equal to the liquidation preference of the senior stock, plus accrued and
unpaid dividends thereon, if any, to the date of final distribution.

     If, upon any liquidation, dissolution or winding-up of us, the amounts
payable with respect to the shares of Series C Preferred Stock or any capital
stock ranking on a par with the shares of Series C Preferred Stock are not paid
in full, then the holders will share ratably in the distribution of assets, or
proceeds from the liquidation, dissolution or winding-up, in proportion to the
full respective preferential amounts to which they are entitled. Neither a
consolidation nor a merger of us with one or more other corporations, nor a sale
or a transfer of all or substantially all of our assets, will be deemed to be a
voluntary or involuntary liquidation, dissolution or winding-up of us.

     Sinking Fund; Other Matters. We are not required to redeem the Series C
Preferred Stock under any sinking fund provisions. Holders of shares of
Series C Preferred Stock have no preemptive rights.

     Transfer Agent. The transfer agent for the Series C Preferred Stock is
Continental Stock Transfer & Trust Company, New York, New York.

9.2% SERIES A JUNIOR CUMULATIVE CONVERTIBLE PREFERRED STOCK AND
9.2% SERIES B JUNIOR CUMULATIVE CONVERTIBLE PREFERRED STOCK

     The board of directors has authorized the issuance of up to 4,300,000
shares of 9.2% Series A Junior Cumulative Convertible Preferred Stock and up to
2,100,000 shares of the 9.2% Series B Junior Cumulative Convertible Preferred
Stock. As of July 31, 1999, we had 1,350,000 shares of 9.2% Series A Junior
Cumulative Convertible Preferred Stock outstanding held of record by the Apollo
Investors.

     Dividends. The annual dividend rate per share of the Junior Preferred Stock
will be an amount equal to 9.2% of the sum of (1) the liquidation preference of
the Junior Preferred Stock and (2) all unpaid dividends, if any, whether or not
declared, from the date of issuance of the shares of Junior Preferred Stock (for
shares of 9.2% Series A Junior Cumulative Convertible Preferred Stock, the
'Closing Date' and, for shares of 9.2% Series B Junior Cumulative Convertible
Preferred Stock, the 'Option Closing Date') to the applicable dividend payment
date.

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<PAGE>

Dividends on the shares of Junior Preferred Stock will be cumulative, accruing
annually and, when and as declared by our Board of Directors, will be payable
annually initially on November 15, 1999 and on each November 15 thereafter
(each, a 'Junior Preferred Dividend Payment Date'). If any dividend payable on
any Junior Preferred Dividend Payment Date is not declared or paid on the Junior
Preferred Dividend Payment Date in full, in cash or in additional shares of
Junior Preferred Stock of the same series, then the amount of the unpaid
dividend ('Default Dividends') will be accumulated and will accrue dividends,
until paid, compounded annually at a rate equal to 15% per annum. Dividends may
be paid in cash, shares of Junior Preferred Stock of the same series or any
combination of cash and Junior Preferred Stock, at our option. Default Dividends
may only be paid in shares of Junior Preferred Stock of the same series.

     With respect to the payment of dividends, the 9.2% Series A Junior
Cumulative Convertible Preferred Stock ranks on a parity with the 9.2% Series B
Junior Cumulative Convertible Preferred Stock. If and so long as full cumulative
dividends payable on the shares of Junior Preferred Stock in respect of all
prior dividend periods have not been paid or set apart for payment and proper
provision has not been made so that holders of Junior Preferred Stock are
offered the opportunity to make a Payout Election instead of a Conversion Price
adjustment (as described below), we will not pay any dividends, except for
dividends payable in common stock or our capital stock ranking junior to the
Junior Preferred Stock in payment of dividends ('Junior Dividend Stock') or make
any distributions of assets on or redeem, purchase or otherwise acquire for
consideration shares of common stock or Junior Dividend Stock.

     If and so long as any accrued and unpaid dividends payable on any shares of
our capital stock ranking senior to the Junior Preferred Stock in payment of
dividends have not been paid or set apart for payment, we will not pay any
dividends in cash on shares of Junior Preferred Stock. No dividends paid in cash
will be paid or declared and set apart for payment on any shares of Junior
Preferred Stock or of our capital stock ranking equally with the Junior
Preferred Stock in the payment of dividends ('Parity Dividend Stock') for any
period unless we have paid or declared and set apart for payment, or
contemporaneously pay or declare and set apart for payment, all accrued and
unpaid dividends on the Junior Preferred Stock for all dividend payment periods
terminating on or before the date of payment of these dividends; provided,
however, that all dividends accrued by us on shares of Junior Preferred Stock or
Parity Dividend Stock will be declared proportionately with respect to all
shares of Junior Preferred Stock and Parity Dividend Stock then outstanding,
based on the ratio of unpaid dividends on the Junior Preferred Stock to unpaid
dividends on the Parity Dividend Stock. No dividends paid in cash will be paid
or declared and set apart for payment on Junior Preferred Stock for any period
unless we have paid or declared and set apart for payment, or contemporaneously
pay or declare and set apart for payment, all accrued and unpaid dividends on
any shares of Parity Dividend Stock for all dividend payment periods terminating
on or before the date of payment of these dividends.

     Redemption. Except as described below, shares of Junior Preferred Stock may
not be redeemed by us at our option before November 15, 2003. From and after
November 15, 2001 and before November 15, 2003, we may redeem shares of Junior
Preferred Stock, in whole or in part, at any time at a redemption price of 100%
of the liquidation preference of the shares of Junior Preferred Stock redeemed,
plus unpaid dividends, if any, whether or not declared, to the redemption date,
if the average closing price of the common stock as reported in The Wall Street
Journal or, at our election, other reputable financial news source, for the 20
consecutive trading days before the notice of redemption of the Junior Preferred
Stock (the 'Current Market Price') equals or exceeds $60 per share, as adjusted.

     From and after November 15, 2003, we may redeem shares of Junior Preferred
Stock, in whole or in part, at any time at a redemption price of 100% of the
liquidation preference of the Junior Preferred Stock redeemed, plus unpaid
dividends, if any, whether or not declared, to the redemption date.

     On November 15, 2011, we will be required to redeem all outstanding shares
of Junior Preferred Stock at a redemption price of 100% of the liquidation
preference of the Junior Preferred Stock redeemed, plus unpaid dividends, if
any, whether or not declared, to the redemption date.

                                       37


<PAGE>

     The amount paid to the holders of shares of Junior Preferred Stock upon
redemption that is allocable to the liquidation preference of the shares of
Junior Preferred Stock will be paid in cash and the amount of any unpaid
dividends to be paid on the shares of Junior Preferred Stock redeemed will be
paid in cash, shares of Junior Preferred Stock of the same series or any
combination of cash and Junior Preferred Stock at our option.

     Change of Control. Upon the occurrence of a Change of Control, we must make
an offer (a 'Change of Control Offer') to purchase all then outstanding shares
of Junior Preferred Stock at a purchase price in cash equal to 101% of their
liquidation preference, plus unpaid dividends (paid in cash), if any, whether or
not declared, to the date the shares are purchased; provided that if the
purchase of the Junior Preferred Stock would violate or constitute a default
under (1) our senior discount notes or the indenture relating to our senior
discount notes or (2) the indenture or indentures or other agreement or
agreements under which there may be issued or outstanding from time to time
other indebtedness of CD Radio ('Other Agreements') in an aggregate principal
amount not exceeding $450 million (less the amount, if any, of indebtedness
issued to replace, refinance or refund our senior discount notes) because we
have not satisfied all of our obligations under the indenture relating to our
senior discount notes and the Other Agreements arising from the Change of
Control (collectively, the 'Senior Obligations'), then we will be required to
use our best efforts to satisfy the Senior Obligations as promptly as possible
or to obtain the requisite consents necessary to permit the repurchase of the
Junior Preferred Stock, and until the Senior Obligations are satisfied or
consents are obtained, we will not be obligated to make a Change of Control
Offer.

     With respect to the Junior Preferred Stock, a 'Change of Control' is
defined as the occurrence of any of the following events: (1) any 'person' or
'group' (as these terms are used in Sections 13(d) and 14(d) of the Exchange
Act) is or becomes the 'beneficial owner' (as defined in Rules 13d-3 and 13d-5
under the Exchange Act, except that a person shall be deemed to have 'beneficial
ownership' of all securities that the person has the right to acquire, whether
the right is exercisable immediately or only after the passage of time),
directly or indirectly, of more than 40% of our total outstanding voting stock;
(2) we consolidate with or merge with or into another person or convey,
transfer, lease or otherwise dispose of all or substantially all of our assets
to any person, or any person consolidates with or merges with or into us, in a
transaction in which our outstanding voting stock is converted into or exchanged
for cash, securities or other property, other than, at all times when the senior
discount notes are outstanding, those transactions that are not deemed a 'Change
of Control' under the terms of the indenture relating to our senior discount
notes; (3) during any consecutive two-year period, individuals who at the
beginning of the period constituted our board of directors (together with any
new directors whose election to the board of directors, or whose nomination for
election by our stockholders, was approved by a vote of 66 2/3% of the directors
then still in office who were either directors at the beginning of the period or
whose election or nomination for election was previously so approved) cease for
any reason to constitute a majority of our board of directors then in office; or
(4) we are liquidated or dissolved or a special resolution is passed by our
stockholders approving the plan of liquidation or dissolution, other than, at
all times when our senior discount notes are outstanding, those transactions
that are not deemed a 'Change of Control' under the terms of the indenture
relating to our senior discount notes.

     Notwithstanding the foregoing, no transaction or event will be deemed a
'Change of Control' if (1) all of the outstanding shares of common stock are to
be converted pursuant thereto solely into the right to receive, for each share
of common stock so converted, cash and/or shares of Qualifying Acquiror common
stock (valued at its Current Market Price) together having a value in excess of
$30.30, (2) we have declared and paid all dividends on the Junior Preferred
Stock, whether or not theretofore declared or undeclared, to the date of the
Change of Control and the holders of Junior Preferred Stock have been given
reasonable opportunity to convert, before the Change of Control, any shares of
Junior Preferred Stock so issued as a dividend, and (3) immediately following
the event the number of shares of Qualifying Acquiror common stock into which
shares of Junior Preferred Stock have been converted (together with, if shares
of Junior Preferred Stock are to remain outstanding, any shares of Qualifying
Acquiror common stock into

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<PAGE>

which all outstanding shares of Junior Preferred Stock would be convertible)
represent both (a) less than 5% of the total number of shares of Qualifying
Acquiror common stock outstanding immediately after the Change of Control and
(b) less than one third of the number of shares of Qualifying Acquiror common
stock that would be Publicly Traded immediately after the event. The term
'Qualifying Acquiror common stock' means the common stock of any corporation if
listed on or admitted to trading on the New York Stock Exchange, American Stock
Exchange or Nasdaq, and the term 'Publicly Traded' means shares of Qualifying
Acquiror common stock that are both (a) held by persons who are neither
officers, directors or Affiliates of the corporation nor the 'beneficial owner'
(as the term is defined in Rule 13d-3 under the Exchange Act) of 5% or more of
the total number of shares then issued and outstanding, and (b) not 'restricted
securities' (as the term is defined in Rule 144 of the Securities Act).

     Conversion. Each share of Junior Preferred Stock may be converted at any
time, at the option of the holder, unless previously redeemed, into a number of
shares of common stock calculated by dividing the liquidation preference of the
Junior Preferred Stock (without unpaid dividends) by $30 (as adjusted from time
to time, the 'Conversion Price'). The Conversion Price will not be adjusted at
any time for unpaid dividends on the shares of Junior Preferred Stock, but will
be adjusted for the occurrence of some corporate events affecting the common
stock. Upon conversion, holders of the Junior Preferred Stock will be entitled
to receive any unpaid dividends upon the shares of Junior Preferred Stock
converted payable in cash, shares of common stock or a combination of cash and
common stock, at our option.

     The Conversion Price for shares of Junior Preferred Stock will be adjusted
in some events, including (1) dividends and other distributions payable in
common stock on any class of our capital stock, (2) subdivisions, combinations
and reclassifications of the common stock, (3) the issuance to all holders of
common stock of rights or warrants entitling them to subscribe for or purchase
common stock at less than fair market value, (4) distributions to all holders of
common stock of evidence of our indebtedness or assets, (5) repurchases,
redemptions or other acquisitions of the common stock by us at a price per share
greater than the Current Market Price per share of common stock on the date of
the event, (6) issuance or sale of common stock by us at a price per share more
than 15% below (or, in the case of any issuance or sale to an affiliate of ours,
any amount below) the Current Market Price per share of common stock on the date
of the event (except for issuances to or through a nationally recognized
investment banking firm in which our affiliates purchase less than 25% of the
shares in the offering) and (7) a consolidation or merger to which we are a
party or the sale or transfer of all or substantially all of our assets.

     The Conversion Price for shares of Junior Preferred Stock will not be
adjusted if (1) the adjustment would not require an increase or decrease of at
least 1% in the Conversion Price then in effect or (2) with respect to each
series of Junior Preferred Stock and in connection with an adjustment that would
be made in respect of a dividend, purchase, redemption or other acquisition,
holders of a majority of the outstanding shares of the series of Junior
Preferred Stock elect to participate in the dividend, purchase, redemption or
other acquisition (a 'Payout Election') proportionately with the holders of
common stock or capital stock ranking junior to the Junior Preferred Stock
('Junior Stock').

     Voting Rights. So long as any shares of Junior Preferred Stock are
outstanding, each share of Junior Preferred Stock will entitle its holder to
vote, in person or by proxy, at any special or annual meeting of stockholders,
on all matters entitled to be voted on by holders of common stock voting
together as a single class with all other shares entitled to vote those matters.
With respect to these matters, each share of Junior Preferred Stock will entitle
its holder to cast that number of votes per share as is equal to the number of
votes that the holder would be entitled to cast had the holder converted its
shares of Junior Preferred Stock into shares of common stock on the record date
for determining our stockholders eligible to vote on these matters.

     In addition to any vote or consent of stockholders required by law or by
our amended and restated certificate of incorporation, the consent of the
holders of at least a majority of the shares of a particular series of Junior
Preferred Stock at any time issued and outstanding will be necessary for
effecting or validating any reclassification of that series of Junior Preferred
Stock or

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<PAGE>

amendment, alteration or repeal of any of the provisions of our amended and
restated certificate of incorporation or amended and restated by-laws which
adversely affects the voting powers, rights or preferences of the holders of the
shares of that series of Junior Preferred Stock. The consent of the holders of
at least a majority of the shares of Junior Preferred Stock at the time issued
and outstanding, acting as a single class, will be necessary for effecting or
validating any amendment, alteration or repeal of any of the provisions of our
amended and restated certificate of incorporation or amended and restated
by-laws which affects adversely the voting powers, rights or preferences of the
holders of the shares of both series of Junior Preferred Stock. Any amendment of
the provisions of our amended and restated certificate of incorporation so as to
authorize or create, or to increase the authorized amount of, any Junior Stock
will not be deemed to affect adversely the voting powers, rights or preferences
of the holders of shares of Junior Preferred Stock. The consent of at least a
majority of the shares of each series of Junior Preferred Stock will also be
necessary for:

          (1) the authorization or creation of, or the increase in the
     authorized amount of, or the issuance of any shares of any class or series
     of, capital stock ranking senior to the Junior Preferred Stock ('Senior
     Stock') or any security convertible into shares of any class or series of
     Senior Stock;

          (2) the authorization or creation of, or the increase in the
     authorized amount of, or the issuance of any shares of any class or series
     of capital stock ranking equally with the Junior Preferred Stock ('Parity
     Stock') or any security convertible into shares of any class or series of
     Parity Stock so that the aggregate liquidation preference of all
     outstanding shares of Parity Stock (other than (x) shares of Junior
     Preferred Stock issued under the stock purchase agreement, dated November
     13, 1998, between us and Apollo Investment Fund IV, L.P. and Apollo
     Overseas Partners, L.P. and (y) shares of Junior Preferred Stock issued as
     a dividend in respect of shares issued in respect of (x) or (y)) would
     exceed the sum of (A) $135,000,000 and (B) the aggregate liquidation
     preference of the shares of 9.2% Series B Junior Cumulative Convertible
     Preferred Stock issued at the Option Closing, if any;

          (3) our merger or consolidation with or into any other entity, unless,
     after the merger or consolidation, the resulting corporation will have no
     class or series of shares and no other securities either authorized or
     outstanding ranking before, or equally with, shares of Junior Preferred
     Stock; provided, however, that no vote or consent of the holders of Junior
     Preferred Stock will be required if before the time when the merger or
     consolidation is to take effect, and regardless of whether the merger or
     consolidation would constitute a Change of Control, a Change of Control
     Offer is made for all shares of Junior Preferred Stock at the time
     outstanding; and

          (4) the application of any of our funds, property or assets to the
     purchase, redemption, sinking fund or other retirement of any shares of any
     class of Junior Stock, or the declaration, payment or making of any
     dividend or distribution on any shares of any class of Junior Stock, other
     than a dividend or dividends payable solely in shares of common stock or
     Junior Stock of the same series, unless the holders of Junior Preferred
     Stock have been offered the opportunity to make a Payout Election with
     respect to this event.

     In connection with the foregoing class rights to vote, each holder of
shares of Junior Preferred Stock shall have one vote for each share of Junior
Preferred Stock held. No consent of holders of Junior Preferred Stock is
required for the creation of any indebtedness of any kind of CD Radio.

     Liquidation. If we are voluntarily or involuntarily liquidated, dissolved
or wound up, the 9.2% Series A Junior Cumulative Convertible Preferred Stock
will rank on a parity with the 9.2% Series B Junior Cumulative Convertible
Preferred Stock, and before any distribution of our assets to the holders of
shares of common stock or any other class or series of Junior Stock, but after
payment of the liquidation preference payable on the Series C Preferred Stock or
any other class or series of Senior Stock, the holders of shares of Junior
Preferred Stock will be entitled to receive out of our assets available for
distribution to our stockholders, whether from capital, surplus or earnings, an
amount per share of Junior Preferred Stock equal to $100, plus accrued

                                       40


<PAGE>

and unpaid dividends on each share of Junior Preferred Stock, if any, to the
date of final distribution.

     If we are voluntarily or involuntarily liquidated, dissolved or wound up,
before any distribution of our assets to the holders of shares of Junior
Preferred Stock or Parity Stock, the holders of any shares of Senior Stock will
be entitled to receive out of our assets available for distribution to our
stockholders, whether from capital, surplus or earnings, an amount per share of
Senior Stock equal to the liquidation preference of the Senior Stock, plus
accrued and unpaid dividends on the Senior Stock, if any, to the date of final
distribution.

     If, upon any liquidation, dissolution or winding-up of us, the amounts
payable with respect to the shares of Junior Preferred Stock or any Parity Stock
are not paid in full, then holders of Junior Preferred Stock and Parity Stock
will share ratably in the distribution of assets, or proceeds of the
liquidation, dissolution or winding-up, in proportion to the full respective
preferential amounts to which they are entitled. Neither a consolidation nor a
merger of us with one or more other corporations, nor a sale or a transfer of
all or substantially all of our assets, will be deemed to be a voluntary or
involuntary liquidation, dissolution or winding-up of us.

     Exchange. Shares of Junior Preferred Stock may be exchanged at any time and
from time to time, at our option, for our 9.2% Convertible Debentures (the
'Convertible Debt'). The Convertible Debt will be issued under an indenture
acceptable, in form and substance, to a majority of the holders of the Junior
Preferred Stock immediately before the effectiveness of the indenture.

     The Convertible Debt will have a maturity date 13 years following the
Closing Date, a principal amount equal to the aggregate liquidation preference
of the shares of Junior Preferred Stock exchanged and will provide for the
payment of interest at a rate of 9.2% per annum, payable annually in cash or
additional Convertible Debt, at our option. The Convertible Debt will be
convertible and redeemable on terms substantially similar to those of the Junior
Preferred Stock.

     Registration Rights. At any time after December 23, 2000, holders of shares
of 9.2% Series A Junior Cumulative Convertible Preferred Stock, or shares of
common stock into which shares of 9.2% Series A Junior Cumulative Convertible
Preferred Stock have been converted, representing, in the aggregate, at least
50% of the shares of common stock into which shares of 9.2% Series A Junior
Cumulative Convertible Preferred Stock have been or may be converted (assuming
conversion of the 9.2% Series A Junior Cumulative Convertible Preferred Stock)
('Series A Registrable Securities') will be entitled, on two occasions, to
require us to register the Series A Registrable Securities for sale in an
underwritten public offering by a nationally recognized investment banking firm
or firms reasonably acceptable to us. At any time after December 23, 2000,
holders of shares of 9.2% Series B Junior Cumulative Convertible Preferred Stock
or shares of common stock into which shares of 9.2% Series B Junior Cumulative
Convertible Preferred Stock have been converted representing, in the aggregate,
at least 50% of the shares of common stock into which shares of 9.2% Series B
Junior Cumulative Convertible Preferred Stock have been or may be converted
(assuming conversion of the 9.2% Series B Junior Cumulative Convertible
Preferred Stock) ('Series B Registrable Securities') will be entitled, on one
occasion, to require us to register the Series B Registrable Securities for sale
in an underwritten public offering by a nationally recognized investment banking
firm or firms reasonably acceptable to us.

     If a demand registration would be seriously detrimental to us and our
stockholders, the demand registration may be deferred, at our request, twice in
any 12-month period, for an aggregate period of time of up to 90 days. In
addition, holders of Junior Preferred Stock will be bound by customary 'lockup'
agreements at the request of the managing underwriter of any public offering on
our behalf. If we plan to file a registration statement on behalf of one or more
security holders, holders of Junior Preferred Stock also have the right, taking
into account customary limitations and the rights of the other security holders,
to request that the registration include their Registrable Securities. Holders
of Junior Preferred Stock or Registrable Securities are entitled to an unlimited
number of these 'piggy-back' registrations.

                                       41


<PAGE>

     Tag-Along Agreement. David Margolese, our Chairman and Chief Executive, and
we also entered into a tag-along agreement with the Apollo Investors. Under the
tag-along agreement, if Mr. Margolese sells more than 800,000 shares of our
common stock before the earlier of the date that the Apollo Investors
beneficially own less than 2,000,000 shares of the common stock or the date that
is six months after the nationwide commercial introduction of our service, then
the Apollo Investors have rights to sell, proportionately with Mr. Margolese, a
portion of the common stock owned by them in any subsequent transaction in which
Mr. Margolese disposes of 80,000 or more shares of our common stock.

REGISTRATION RIGHTS

     In connection with the sale of 5,000,000 shares of common stock to Prime
66, we granted registration rights to Prime 66. Prime 66 has the right to make
two demands, at any time after October 1, 2000, which will require us to use our
best efforts to effect the registration of Prime 66's shares of common stock.

     In addition, if we determine to register any shares of common stock for one
or more security holders, Prime 66 has the right, taking into account customary
limitations and the rights of the other security holders, to request that the
registration include Prime 66's common stock. Prime 66 is entitled to an
unlimited number of these 'piggy-back' registrations.

                            DESCRIPTION OF WARRANTS

     We may issue warrants for the purchase of debt securities, preferred stock,
common stock or any combination thereof. Warrants may be issued independently or
together with any other securities offered in an applicable prospectus
supplement and may be attached to or separate from such securities. Warrants may
be issued under warrant agreements (each, a 'warrant agreement') to be entered
into between us and a warrant agent specified in the applicable prospectus
supplement. The warrant agent will act solely as our agent in connection with
the warrants of a particular series and will not assume any obligation or
relationship of agency or trust for or with any holders or beneficial owners of
warrants. The following sets forth certain general terms and provisions of
warrants which may be offered. Further terms of the warrants and the applicable
warrant agreement will be set forth in an applicable prospectus supplement.

DEBT WARRANTS

     The prospectus supplement relating to a particular issue of warrants to
issue debt securities ('debt warrants') will describe the terms of the debt
warrants, including the following:

      the title of the debt warrants;

      the offering price for the debt warrants, if any;

      the aggregate number of the debt warrants;

      the designation and terms of the debt securities purchasable upon exercise
      of the debt warrants;

      if applicable, the designation and terms of the debt securities that the
      debt warrants are issued with and the number of debt warrants issued with
      each debt security;

      if applicable, the date from and after which the debt warrants and any
      debt securities issued with them will be separately transferable;

      the principal amount of debt securities that may be purchased upon
      exercise of a debt warrant and the price at which the debt securities may
      be purchased upon exercise (which may be payable in cash, securities or
      other property);

      the dates on which the right to exercise the debt warrants will commence
      and expire;

      if applicable, the minimum or maximum amount of the debt warrants that may
      be exercised at any one time;

                                       42


<PAGE>

      information with respect to book-entry procedures, if any;

      the currency or currency units in which the offering price, if any, and
      the exercise price are payable;

      if applicable, a discussion of material United States federal income tax
      considerations;

      the antidilution provisions of the debt warrants, if any;

      the redemption or call provisions, if any, applicable to the debt
      warrants; and

      any additional terms of the debt warrants, including terms, procedures,
      and limitations relating to the exchange and exercise of the debt
      warrants.

STOCK WARRANTS

     The prospectus supplement relating to a particular issue of warrants to
issue common stock or preferred stock will describe the terms of the warrants,
including the following:

      the title of the warrants;

      the offering price for the warrants, if any;

      the aggregate number of the warrants;

      the designation and terms of the common stock or preferred stock that may
      be purchased upon exercise of the warrants;

      if applicable, the designation and terms of the securities that the
      warrants are issued with and the number of warrants issued with each
      security;

      if applicable, the date from and after which the warrants and any
      securities issued with the warrants will be separately transferable;

      the number of shares of common stock or preferred stock that may be
      purchased upon exercise of a warrant and the price at which such shares
      may be purchased upon exercise;

      the dates on which the right to exercise the warrants will commence and
      expire;

      if applicable, the minimum or maximum amount of the warrants that may be
      exercised at any one time;

      the currency or currency units in which the offering price, if any, and
      the exercise price are payable;

      if applicable, a discussion of material United States federal income tax
      considerations;

     the antidilution provisions of the warrants, if any;

      the redemption or call provisions, if any, applicable to the warrants; and

      any additional terms of the warrants, including terms, procedures, and
      limitations relating to the exchange and exercise of the warrants.

EXERCISE OF WARRANTS

     Each warrant will entitle the holder of warrants to purchase for cash the
amount of shares of preferred stock, shares of common stock or debt securities
at the exercise price as shall in each case be set forth in, or be determinable
as set forth in, the prospectus supplement relating to the warrants offered
thereby. Warrants may be exercised at any time up to the close of business on
the expiration date set forth in the prospectus supplement relating to the
warrants offered thereby. After the close of business on the expiration date,
unexercised warrants will become void.

     Warrants may be exercised as set forth in the prospectus supplement
relating to the warrants offered thereby. Upon receipt of payment and the
warrant certificate properly completed and duly executed at the corporate trust
office of the warrant agent or any other office indicated in the prospectus
supplement, we will, as soon as practicable, forward the shares of preferred
stock, shares of common stock or debt securities purchasable upon such exercise.
If less than all of the

                                       43


<PAGE>

warrants represented by the warrant certificate are exercised, a new warrant
certificate will be issued for the remaining warrants.

WARRANTS TO PURCHASE SERIES C PREFERRED STOCK

     In connection with the issuance of a class of preferred stock which is no
longer outstanding, we issued warrants as of April 9, 1997, to Libra
Investments, Inc. ('Libra') and some individuals and entities designated by
Libra. These warrants may be exercised for an aggregate of 177,178 shares of
Series C Preferred Stock. Holders of these warrants may exercise their warrants
until April 9, 2002, at an exercise price which declines every month. During
July 1999, the exercise price for each of these warrants was $66.05 per share of
Series C Preferred Stock.

THE UNIT OFFERING WARRANTS

     On May 18, 1999, we issued units composed of our 14 1/2% senior secured
notes due 2009 and warrants to purchase an aggregate of 2,190,000 shares of
common stock at a price of $28.60 per share. These warrants were issued under a
warrant agreement, dated as of May 15, 1999, between us, as issuer, and United
States Trust Company of New York, as warrant agent. The number of shares of
common stock to be issued under these warrants will be adjusted in some cases if
we issue additional shares of common stock, options, warrants or convertible
securities and in some other events. These warrants will expire on May 15, 2009.
Under the warrant agreement for these warrants, holders can not exercise their
warrants before the earlier to occur of: (1) the effective date of a change in
our control and (2) May 18, 2000.

     We have agreed to file and have declared effective a shelf registration
statement covering the resale of the unit offering warrants within 150 days
after the issuance of the warrants, and, to cause the shelf registration
statement to remain effective until the earliest of (1) two years after the
issuance of the unit offering warrants, (2) the time when all unit offering
warrants have been sold under the shelf registration statement and (3) the time
when the unit offering warrants can be sold by persons who are not our
affiliates without restriction under the Securities Act.

     We have also agreed to file and have declared effective a shelf
registration statement covering the issuance of the shares of common stock
issuable upon the exercise of the unit offering warrants and to cause this shelf
registration statement to remain effective until the earlier of (1) the time
when all unit offering warrants have been exercised and (2) May 15, 2009.

     Holders of these warrants and shares of common stock received upon exercise
of these warrants will also have the right to include these warrants and shares
of common stock received upon exercise of these warrants in any registration
statement we file under the Securities Act for our account or for any holders of
our common equity securities, with some exceptions.

THE FORD WARRANT

     On June 15, 1999, we issued a warrant to Ford which entitles Ford to
purchase up to 4,000,000 shares of our common stock at a purchase price of
$30 per share.

     Under this warrant agreement, Ford's right to exercise this warrant vests
as follows:

      with respect to 1,000,000 shares of common stock, on the date that Ford
      has manufactured 500,000 new vehicles containing CD Radio receivers ('Ford
      Enabled Vehicles');

      with respect to an additional 500,000 shares of common stock, on the date
      that Ford has manufactured an aggregate of 1,000,000 Ford Enabled
      Vehicles;

      with respect to an additional 500,000 shares of common stock, on the date
      that Ford has manufactured an aggregate of 2,000,000 Ford Enabled
      Vehicles;

      with respect to an additional 1,000,000 shares of common stock, on the
      date that Ford has manufactured an aggregate of 3,000,000 Ford Enabled
      Vehicles; and

      with respect to an additional 1,000,000 shares of common stock, on the
      date that Ford has manufactured an aggregate of 4,000,000 Ford Enabled
      Vehicles.

                                       44


<PAGE>

     The number of shares of common stock to be issued under this warrant will
be adjusted in some cases if we issue stock dividends, combine stock, reorganize
or reclassify capital stock, merge, sell all of our assets and in some other
events. This warrant will expire on the earlier of June 11, 2009 and the date of
termination or expiration of the agreement, dated June 11, 1999, between us and
Ford.

     We are required to give Ford notice of adjustments in the number of shares
issuable under this warrant and of extraordinary corporate events. If we issue
shares of common stock in an underwritten public offering, we also must notify
Ford and offer to issue Ford, for cash at an equal price, the number of shares
of common stock required so that Ford will have the same percentage of the total
number of shares of common stock issued and outstanding immediately prior to the
offering as after giving effect to the offering. Ford, however, must exercise
this preemptive purchase right within five days after receiving notice from us
and must purchase its common shares simultaneous with the closing of the
offering.

                              PLAN OF DISTRIBUTION

     We may sell the securities (i) to one or more underwriters or dealers for
public offering and sale by them and (ii) to investors directly or through
agents. The distribution of securities may be effected from time to time in one
or more transactions at a fixed price or prices (which may be changed from time
to time), at market prices prevailing at the time of sale, at prices related to
such prevailing market prices or at negotiated prices. Each prospectus
supplement will describe: (i) the method of distribution of the securities
offered thereby; (ii) the purchase price and the proceeds we will receive from
the sale; and (iii) any securities exchanges on which the securities of such
series may be listed.

     In connection with the sale of the securities, underwriters, dealers or
agents may receive compensation from us or from purchasers of the securities for
whom they may act as agents, in the form of discounts, concessions or
commissions. The underwriters, dealers or agents that participate in the
distribution of the securities may be deemed to be underwriters under the
Securities Act and any discounts or commissions received by them and any profit
on the resale of the securities received by them may be deemed to be
underwriting discounts and commissions thereunder. Any such underwriter, dealer
or agent will be identified and any such compensation received from us will be
described in the applicable prospectus supplement. Any initial public offering
price and any discounts or concessions allowed or paid to dealers may be changed
from time to time.

     Under the agreements that may be entered into with us, underwriters,
dealers and agents may be entitled to indemnification by us against certain
civil liabilities, including liabilities under the Securities Act, or to
contribution with respect to payments which the underwriters, dealers or agents
may be required to make in respect thereof.

     Each underwriter, dealer and agent participating in the distribution of any
securities that are issuable in bearer form will agree that it will not offer,
sell, resell or deliver, directly or indirectly, securities in bearer form to
persons located in the United States or to United States persons (other than
qualifying financial institutions), in connection with the original issuance of
the securities.

     Certain of the underwriters or agents and their associates may be customers
of, engage in transactions with and perform services for us in the ordinary
course of business.

     Certain persons participating in an offering may engage in transactions
that stabilize, maintain or otherwise affect the price of the securities,
including over-allotment, stabilizing and short-covering transactions in such
securities, the imposition of a penalty bid, and bidding for and purchasing
shares of the common stock in the open market during and after an offering.

                                 LEGAL MATTERS

     Paul, Weiss, Rifkind, Wharton & Garrison, New York, New York, will pass
upon specific legal matters with respect to the securities. Certain regulatory
matters arising under the Communications Act will be passed upon by Wiley, Rein
& Fielding, Washington, D.C.

                                       45


<PAGE>

                                    EXPERTS

     Our consolidated financial statements as of December 31, 1997 and 1998, and
for each of the three years in the period ended December 31, 1998, and for the
period from May 17, 1990 (date of inception) to December 31, 1998, included in
this prospectus have been so included in reliance on the report (which contains
an explanatory paragraph relating to our ability to continue as a going concern,
as described in Note 2 to the financial statements) of PricewaterhouseCoopers
LLP, independent accountants, given on the authority of said firm as experts in
accounting and auditing.

                           INCORPORATION BY REFERENCE

     The SEC allows us to 'incorporate by reference' in this prospectus other
information we file with them, which means that we can disclose important
information to you by referring you to those documents. The information
incorporated by reference is an important part of this prospectus, and
information that we file later with the SEC will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any future filings made with the SEC under Sections 13(a), 13(c), 14
or 15(d) of the Exchange Act until we sell all of the securities covered by this
prospectus.

     1. Our Annual Report on Form 10-K for the year ended December 31, 1998.

     2. Our Quarterly Reports on Form 10-Q for the fiscal quarters ended
        March 31, 1999 and June 30, 1999.

     3. Our Current Reports on Form 8-K dated February 4, 1999, April 9, 1999,
        April 16, 1999, May 3, 1999, May 25, 1999 and June 15, 1999.

     4. The description of our common stock contained in our Registration
        Statement on Form 8-A filed pursuant to Section 12(b) of the Exchange
        Act and declared effective on September 13, 1994 (including any
        amendment or report filed for the purpose of updating such description).

     We have filed each of these documents with the SEC and they are available
from the SEC's Internet site and public reference rooms described under 'Where
You May Find Additional Available Information About Us' below. You may also
request a copy of these filings, at no cost, by writing or calling us at the
following address or telephone number:

                                 Patrick L. Donnelly
              Senior Vice President, General Counsel and Secretary
                                 CD Radio Inc.
                    1221 Avenue of the Americas, 36th Floor
                            New York, New York 10020
                                 (212) 584-5100

     You should rely only on the information incorporated by reference or
provided in this prospectus or any prospectus supplement. We have not authorized
anyone else to provide you with different information.

          WHERE YOU MAY FIND ADDITIONAL AVAILABLE INFORMATION ABOUT US

     We file annual, quarterly and current reports, proxy statements and other
information with the SEC. You may read and copy any of these reports, statements
or other information at the SEC's public reference room at 450 Fifth Street,
N.W., Washington, D.C. 20549 or at its regional offices in New York City, New
York, and Chicago, Illinois. You can request copies of those documents, upon
payment of a duplicating fee, by writing to the SEC. Please call the SEC at
1-800-SEC-0330 for further information on the public reference rooms. Our SEC
filings are also available to the public at the SEC's Internet site at
http://www.sec.gov.

                                       46





<PAGE>

________________________________________________________________________________

                                  $500,000,000

                                     [LOGO]

                       DEBT SECURITIES, PREFERRED STOCK,
                           COMMON STOCK AND WARRANTS

                           --------------------------
                                   PROSPECTUS
                           --------------------------

We have not authorized any dealer, salesperson or other person to give any
information or represent anything contained in this prospectus. You must not
rely on any unauthorized information. This prospectus does not offer to sell nor
does it solicit to buy any securities in any jurisdiction where it is unlawful.
The information in this prospectus is current as of       , 1999.

                                        , 1999

________________________________________________________________________________


<PAGE>

                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

     The cash expenses in connection with the issuance and distribution of the
securities being registered, other than underwriting compensation, are as
follows:

<TABLE>
<CAPTION>
Securities and Exchange Commission Registration Fee.          $139,000
<S>                                                           <C>
Trustee's Fees..............................................     *
Accounting Fees and Expenses................................     *
Legal Fees and Expenses.....................................     *
Printing, Engraving and Delivery Expenses...................     *
Rating Agency Fees..........................................     *
Blue Sky Fees and Expenses..................................     *
Listing Fee.................................................     *
Miscellaneous Expenses......................................     *
                                                              --------
     Total..................................................    $  *
                                                              --------
                                                              --------
</TABLE>

- ------------

* To be completed by amendment

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Section 145 of the Delaware General Corporation Law authorizes a
corporation to indemnify its directors, officers, employees and agents against
certain liabilities they may incur in such capacities, including liabilities
under the Securities Act, provided they act in good faith and in a manner
reasonably believed to be in or not opposed to the best interests of the
corporation. Our amended and restated certificate of incorporation and amended
and restated by-laws require us to indemnify our officers and directors to the
full extent permitted by Delaware law.

     Section 102 of the Delaware General Corporation Law authorizes a
corporation to limit or eliminate its directors' liability to the corporation or
its stockholders for monetary damages for breaches of fiduciary duties, other
than for (i) breaches of the duty of loyalty, (ii) acts or omissions involving
bad faith, intentional misconduct or knowing violations of the law,
(iii) unlawful payments of dividends, stock purchases or redemptions, or
(iv) transactions from which a director derives an improper personal benefit.
Our amended and restated certificate of incorporation contains provisions
limiting the liability of the directors to us and to our stockholders to the
full extent permitted by Delaware law.

     Section 145 of the Delaware General Corporation Law authorizes a
corporation to purchase and maintain insurance on behalf of any person who is or
was a director, officer, employee or agent of the corporation against any
liability asserted against him or her and incurred by him or her in any such
capacity, or arising out of his or her status as such. Our amended and restated
certificate of incorporation and amended and restated by-laws provide that we
may, to the full extent permitted by law, purchase and maintain insurance on
behalf of any director, officer, employee or agent of ours against any liability
that may be asserted against him or her, and we currently maintain such
insurance. We have acquired $10 million of liability insurance covering our
directors and officers for claims asserted against them or incurred by them in
such capacity, including claims brought under the Securities Act.

ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

     The Exhibit Index beginning on page E-1 is incorporated by reference.

                                      II-1

<PAGE>

ITEM 17. UNDERTAKINGS.

     The undersigned registrant hereby undertakes:

     (a) That, for purposes of determining any liability under the Securities
Act, each filing of the registrant's annual report pursuant to Section 13(a) or
15(d) of the Exchange Act that is incorporated by reference in the registration
statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof.

     (b) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities Act
and is, therefore, unenforceable. If a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or
paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.

     (c) (1) That, for purposes of determining any liability under the
Securities Act, the information omitted from the form of prospectus filed as
part of this registration statement in reliance upon Rule 430A and contained in
a form of a prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4)
or 497(h) under the Securities Act shall be deemed to be part of this
registration statement as of the time it was declared effective.

     (2) That, for the purpose of determining any liability under the Securities
Act, each post-effective amendment shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.

     (3) That any securities being registered hereunder which remain unsold at
the termination of the offering shall be removed from registration by means of a
post-effective amendment.

     (d) To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

          (1) to include any prospectus required by Section 10(a)(3) of the
     Securities Act;

          (2) to reflect in the prospectus any facts or events arising after the
     effective date of this registration statement (or the most recent
     post-effective amendment thereof), which, individually or in the aggregate,
     represent a fundamental change in the information set forth in this
     registration statement. Notwithstanding the foregoing, any increase or
     decrease in volume of securities offered (if the total dollar value of
     securities offered would not exceed that which was registered) and any
     deviation from the low or high of the estimated maximum offering range may
     be reflected in the form of prospectus filed by the Commission pursuant to
     Rule 424(b) if, in the aggregate, the changes in volume and price represent
     no more than 20% change in the maximum aggregate offering price set forth
     in the 'Calculation of Registration Fee' table in this registration
     statement;

          (3) to include any material information with respect to the plan of
     distribution not previously disclosed in this registration statement or any
     material change to such information in this registration statement;

     Provided, however, that the undertakings set forth in paragraphs (d)(1) and
(d)(2) above do not apply if this registration statement is on Form S-3,
Form S-8 or Form F-3, and the information required to be included in a
post-effective amendment by those paragraphs is contained in periodic reports
filed by the registrant pursuant to Section 13 or Section 15(d) of the Exchange
Act that are incorporated by reference in this registration statement.

                                      II-2

<PAGE>

     (e) Insofar as the securities to be registered are to be offered to
existing security holders pursuant to warrants or rights and any securities not
taken by security holders are to be reoffered to the public:

          (1) to supplement the prospectus, after the expiration of the
     subscription period,

          (2) to set forth the results of the subscription offer, the
     transactions by the underwriters during the subscription period, the amount
     of unsubscribed securities to be purchased by the underwriters, and the
     terms of any subsequent reoffering thereof.

     If any public offering by the underwriters is to be made on terms differing
from those set forth on the cover page of the prospectus, a post-effective
amendment will be filed to set forth the terms of such offering.

     (f) To file an application for the purpose of determining the eligibility
of the trustee to act under subsection (a) of section 310 of the Trust Indenture
Act ('Act') in accordance with the rules and regulations prescribed by the
Commission under section 305(b)(2) of the Act.

                                      II-3


<PAGE>

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of New York, State of New York, on August 27, 1999.

                                          CD RADIO INC.

                                          By:       /s/ PATRICK L. DONNELLY
                                               .................................

                                                    PATRICK L. DONNELLY
                                               SENIOR VICE PRESIDENT, GENERAL
                                                    COUNSEL AND SECRETARY

                                      II-4


<PAGE>

                               POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that each individual whose signature
appears below hereby constitutes and appoints Patrick L. Donnelly and John T.
McClain or either of them his true and lawful agent, proxy and attorney-in-fact,
with full power of substitution and resubstitution, for him and in his name,
place and stead, in any and all capacities, to (i) act on, sign and file with
the Securities and Exchange Commission any and all amendments (including
post-effective amendments) to this registration statement together with all
schedules and exhibits thereto and any subsequent registration statement filed
pursuant to Rule 462(b) under the Securities Act of 1933, as amended, together
with all schedules and exhibits thereto, (ii) act on, sign and file such
certificates, instruments, agreements and other documents as may be necessary or
appropriate in connection therewith, (iii) act on and file any supplement to any
prospectus included in this registration statement or any such amendment or any
subsequent registration statement filed pursuant to Rule 462(b) under the
Securities Act of 1933, as amended, and (iv) take any and all actions which may
be necessary or appropriate in connection therewith, granting unto such agent,
proxy and attorney-in-fact full power and authority to do and perform each and
every act and thing necessary or appropriate to be done, as fully for all
intents and purposes as he might or could do in person, hereby approving,
ratifying and confirming all that such agents, proxies and attorneys-in-fact or
any of their substitutes may lawfully do or cause to be done by virtue thereof.

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
                SIGNATURE                                  TITLE                         DATE
                ---------                                  -----                         ----
<C>                                         <S>                                   <C>
           /s/ DAVID MARGOLESE              Chairman and Chief Executive Officer   August 27, 1999
 .........................................    and Director (Principal Executive
             DAVID MARGOLESE                  and Financial Officer)

           /s/ JOHN T. MCCLAIN              Vice President and Controller          August 27, 1999
 .........................................    (Principal Accounting Officer)
             JOHN T. MCCLAIN

          /s/ ROBERT D. BRISKMAN            Director                               August 27, 1999
 .........................................
            ROBERT D. BRISKMAN

         /s/ LAWRENCE F. GILBERTI           Director                               August 27, 1999
 .........................................
           LAWRENCE F. GILBERTI

          /s/ JOSEPH V. VITTORIA            Director                               August 27, 1999
 .........................................
            JOSEPH V. VITTORIA

          /s/ RALPH V. WHITWORTH            Director                               August 27, 1999
 .........................................
            RALPH V. WHITWORTH
</TABLE>

                                      II-5


<PAGE>

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>

EXHIBIT                                                                PAGE
- -------                                                                ----
<S>      <C>                                                           <C>
 1.1     -- Form of Underwriting Agreement**.........................
 4.1.1   -- Form of Certificate for Shares of Common Stock
           (incorporated by reference to Exhibit 4.3 to the Company's
           Registration Statement on Form S-1 (File No. 33-74782))...
 4.1.2   -- Rights Agreement, dated as of October 22, 1997, between
           the Company and Continental Stock Transfer & Trust
           Company, as rights agent (incorporated by reference to
           Exhibit 1 to the Company's Registration Statement on Form
           8-A, filed with the Commission on October 30, 1997 (the
           'Form 8-A'))..............................................
 4.1.3   -- Form of Certificate of Designations of Series B Preferred
           Stock (incorporated by reference to Exhibit A to Exhibit 1
           to the Form 8-A)..........................................
 4.1.4   -- Form of Right Certificate (incorporated by reference to
           Exhibit B to Exhibit 1 to the Form 8-A)...................
 4.1.5   -- Amendment to the Rights Agreement, dated as of
           October 22, 1997, between the Company and Continental
           Stock Transfer & Trust Company, as rights agent, dated as
           of October 13, 1998 (incorporated by reference to
           Exhibit 99.2 to the Company's Current Report on Form 8-K
           filed on October 13, 1998)................................
 4.1.6   -- Amendment to the Rights Agreement, dated as of
           October 22, 1997, between the Company and Continental
           Stock Transfer & Trust Company, as rights agent, dated as
           of November 13, 1998 (incorporated by reference to
           Exhibit 99.7 to the Company's Current Report on Form 8-K
           filed on November 17, 1998)...............................
 4.1.7   -- Amended and Restated Amendment to Rights Agreement, dated
           as of December 22, 1997, between the Company and
           Continental Stock Transfer & Trust Company, as rights
           agent, dated as of December 22, 1998 (incorporated by
           reference to Exhibit 6 to the Amendment No. 1 to the
           Form 8-A, filed with the Commission on January 6, 1999)...
 4.1.8   -- Amendment to the Rights Agreement, dated as of
           October 22, 1997, between the Company and Continental
           Stock Transfer & Trust Company, as rights agent, dated as
           of June 11, 1999 (incorporated by reference to
           Exhibit 4.1.8 to the Company's Registration Statement on
           Form S-4 (File No. 333-82303) filed on July 2, 1999 (the
           '1999 Units Registration Statement')).....................
 4.1.9   -- Form of Certificate of Designations, Preferences and
           Relative, Participating, Optional and Other Special Rights
           of 10 1/2% Series C Convertible Preferred Stock (the
           'Series C Certificate of Designations') (incorporated by
           reference to Exhibit 4.1 to the Company's Registration
           Statement on Form S-4 (File No. 333-34761))...............
 4.1.10  -- Certificate of Correction to Series C Certificate of
           Designations (incorporated by reference to Exhibit 3.5.2
           to the Company's Annual Report on Form 10-K for the year
           ended December 31, 1997 (the '1997 Form 10-K'))...........
 4.1.11  -- Certificate of Increase of 10 1/2% Series C Convertible
           Preferred Stock (incorporated by reference to Exhibit
           3.5.3 to the Company's Quarterly Report on Form 10-Q for
           the fiscal quarter ended March 31, 1998)..................
 4.1.12  -- Exhibit A to the Stock Purchase Agreement, dated as of
           November 13, 1998, by and among the Company, Apollo
           Investment Fund IV, L.P. and Apollo Overseas Partners IV,
           L.P. (the 'Apollo Stock Purchase Agreement') (Form of
           Certificate of Designation of the Series A Junior
           Preferred Stock) (incorporated by reference to
           Exhibit 99.2 to the Company's Current Report on Form 8-K
           filed on November 17, 1998)...............................
 4.1.13  -- Exhibit B to the Apollo Stock Purchase Agreement (Form of
           Certificate of Designation of the Series B Junior
           Preferred Stock) (incorporated by reference to
           Exhibit 99.3 to the Company's Current Report on Form 8-K
           filed on November 17, 1998)...............................
 4.1.14  -- Form of Certificate for shares of 9.2% Series A Junior
           Cumulative Convertible Preferred Stock (incorporated by
           reference to Exhibit 4.10.1 to the Company's Annual Report
           on Form 10-K for the year ended December 31, 1998 (the
           '1998 Form 10-K)).........................................
</TABLE>

                                      E-1


<PAGE>

<TABLE>
<CAPTION>

EXHIBIT                                                                PAGE
- -------                                                                ----
<S>      <C>                                                           <C>
 4.1.15  -- Form of Certificate for shares of 9.2% Series B Junior
           Cumulative Convertible Preferred Stock (incorporated by
           reference to Exhibit 4.10.2 to the 1998 Form 10-K)........
 4.2.1   -- Indenture, dated as of November 26, 1997, between the
           Company and IBJ Schroder Bank & Trust Company, as Trustee
           (incorporated by reference to Exhibit 4.1 to the Company's
           Registration Statement on Form S-3 (File No. 333-34769)
           (the '1997 Units Registration Statement'))................
 4.2.2   -- Form of Note (incorporated by reference to Exhibit 4.2 to
           the 1997 Units Registration Statement)....................
 4.2.3   -- Warrant Agreement, dated as of November 26, 1997, between
           the Company and IBJ Schroder Bank & Trust Company, as
           warrant agent (incorporated by reference to Exhibit 4.3 to
           the 1997 Units Registration Statement)....................
 4.2.4   -- Form of Warrant (incorporated by reference to Exhibit 4.4
           to the 1997 Units Registration Statement).................
 4.3.1   -- Form of Preferred Stock Warrant Agreement, dated as of
           April 9, 1997, between the Company and each warrantholder
           thereof (incorporated by reference to Exhibit 4.12 to the
           1997 Form 10-K............................................
 4.3.2   -- Form of Common Stock Purchase Warrant granted by the
           Company to Everest Capital Master Fund, L.P. and to The
           Ravich Revocable Trust of 1989 (incorporated by reference
           to Exhibit 4.11 to the 1997 Form 10-K)....................
 4.4.1   -- Notes Registration Rights Agreement among CD Radio Inc.
           and Merrill Lynch & Co., Merrill Lynch, Pierce, Fenner &
           Smith Incorporated, Lehman Brothers Inc., Bear, Stearns &
           Co. Inc., NationsBanc Montgomery Securities LLC, U.S.
           Bancorp Libra, dated as of May 13, 1999 (incorporated by
           reference to Exhibit 4.4.1 to the 1999 Units Registration
           Statement)................................................
 4.4.2   -- Indenture between the Company and United States Trust
           Company of New York, as trustee, dated as of May 15, 1999,
           regarding the Company's 14 1/2% Senior Secured Notes due
           2009 (incorporated by reference to Exhibit 4.4.2 to the
           1999 Units Registration Statement)........................
 4.4.3   -- Form of the Company's 14 1/2% Senior Secured Notes due
           2009 (incorporated by reference to Exhibit 4.4.2 to the
           1999 Units Registration Statement)........................
 4.4.4   -- Warrant Agreement between the Company and United States
           Trust Company of New York, as warrant agent, dated as of
           May 15, 1999 (incorporated by reference to Exhibit 4.4.4
           to the 1999 Units Registration Statement).................
 4.4.5   -- Amended and Restated Pledge Agreement among the Company,
           as pledgor, IBJ Whitehall Bank & Trust Company, as
           trustee, United States Trust Company of New York, as
           trustee, and IBJ Whitehall Bank & Trust Company, as
           collateral agent, dated as of May 15, 1999 (incorporated
           by reference to Exhibit 4.4.5 to the 1999 Units
           Registration Statement)...................................
 4.4.6   -- Collateral Pledge and Security Agreement between the
           Company, as pledgor, and United States Trust Company of
           New York, as trustee, dated as of May 15, 1999
           (incorporated by reference to Exhibit 4.4.6 to the 1999
           Units Registration Statement).............................
 4.4.7   -- Intercreditor Agreement, dated May 15, 1999, by and
           between IBJ Whitehall Bank & Trust Company, as trustee,
           and United States Trust Company of New York, as trustee
           (incorporated by reference to Exhibit 4.4.7 to the 1999
           Units Registration Statement).............................
 4.5.1   -- Common Stock Purchase Warrant granted by the Company to
           Ford Motor Company, dated June 11, 1999 (incorporated by
           reference to Exhibit 4.4.2 to the 1999 Units Registration
           Statement)................................................
 4.6.1   -- Form of Senior Indenture**...............................
 4.6.2   -- Form of Subordinate Indenture**..........................
</TABLE>

                                      E-2


<PAGE>

<TABLE>
<CAPTION>
EXHIBIT                                                                PAGE
- -------                                                                ----
<S>      <C>                                                           <C>
 5.1     -- Opinion of Paul, Weiss, Rifkind, Wharton & Garrison
           regarding legality**......................................
12.1     -- Statement re: Computation of Ratios of Earnings to Fixed
           Charges and Earnings to Combined Fixed Charges and
           Preferred Stock Dividends*................................
23.1     -- Consent of Independent Accountants*......................
23.2     -- Consent of Paul, Weiss, Rifkind, Wharton & Garrison*.....
23.3     -- Consent of Wiley, Rein & Fielding*.......................
24.1     -- Powers of Attorney (included on signature page)*.........
25.1     -- Statement of Eligibility and Qualification on Form T-1 of
           the Trustee to act as Trustee under the Indenture**.......
</TABLE>

- ------------

 * Filed electronically with this registration statement.

** To be filed by amendment or by a Current Report on Form 8-K in accordance
   with Regulation S-K, Item 601(b).

                                      E-3





<PAGE>

                                                                    Exhibit 12.1



                                  CD RADIO INC.
       STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND
        EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

<TABLE>
<CAPTION>

                                                                                         SIX MONTHS
                                     YEARS ENDED DECEMBER 31,                           ENDED JUNE 30,
                                  --------------------------------------------          ----------------
                                  1994      1995      1996      1997       1998         1998        1999
                                  ----      ----      ----      ----       ----         ----        ----
<S>                             <C>       <C>       <C>       <C>        <C>          <C>         <C>
Earnings:
Pretax loss from continuing
operations                      $(4,065)  $(2,107)  $(2,831)  $(4,737)   $(46,101)    $(35,977)   $(23,045)

Add:
Interest and other financial
charges expended                     40        20        13     1,946      14,272        8,982       3,683

Interest factor attributable
to rentals                           40        50        66        92         647          203         829
                               -------- --------- --------- ---------   ---------     --------    --------
Earnings, as adjusted, from     $(3,985)  $(2,038)   (2,752)  $(2,699)   $(31,182)    $(26,792)   $(18,533)
continuing operations          -------- --------- --------- ---------   ---------     --------    --------

Fixed charges:
Interest and other financial
charges expended                    $40       $20       $13    $1,946     $14,272       $8,982      $3,683

Interest capitalized                  -         -         -        23      16,243        2,789      23,392

Interest factor attributable
to rentals                           40        50        66        92         647          203         829
                               -------- --------- --------- ---------   ---------     --------    --------
Total fixed charges                 $80       $70       $79    $2,061     $31,162      $11,974     $27,904
                               -------- --------- --------- ---------   ---------     --------    --------
                               -------- --------- --------- ---------   ---------     --------    --------

Ratio of earnings to fixed
charges (1)                           -         -         -         -           -            -           -

Deficiency of earnings to
fixed charges                    $4,065    $2,107    $2,831    $4,760     $62,344      $38,766     $46,437

Fixed charges from above             80        70        79     2,061      31,162       11,974      27,904

Preferred stock dividends             -         -         -    54,313      37,557       15,591      19,534
                               -------- --------- --------- ---------   ---------     --------    --------
Combined fixed charges and
preferred stock dividends           $80       $70       $79   $56,374     $68,719      $27,565     $47,438
                               -------- --------- --------- ---------   ---------     --------    --------
                               -------- --------- --------- ---------   ---------     --------    --------

Ratio of earnings to combined
fixed charges and preferred
stock dividends (2)                   -         -         -         -           -            -           -

Deficiency of earnings to
combined fixed charges and
preferred stock dividends         $4,065    $2,107    $2,831   $59,073     $99,901       54,357     $65,971
</TABLE>



(1)  The ratio of earnings to fixed charges was less than 1.00 for all periods
     presented and thus earnings  available for fixed charges were inadequate to
     cover fixed charges for these periods.

(2)  The ratio of earnings to combined fixed charges and preferred stock
     dividends was less than 1.00 for all periods presented and thus earnings
     available for combined fixed charges and preferred stock dividends were
     inadequate to cover combined fixed charges and preferred stock dividends
     for these periods.







<PAGE>


                       CONSENT OF INDEPENDENT ACCOUNTANTS



We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our report dated February 5, 1999 relating to the
consolidated financial statements, which appears in CD Radio Inc.'s Annual
Report on Form 10-K for the year ended December 31, 1998. We also consent to the
incorporation by reference of our report dated February 5, 1999 relating to the
financial statement schedule, which appears in such Annual Report on Form 10-K.
We also consent to the reference to us under the heading "Experts" in such
Registration Statement.


/s/ PRICEWATERHOUSECOOPERS LLP


PRICEWATERHOUSECOOPERS LLP


New York, New York
August 27, 1999










<PAGE>


                    PAUL, WEISS, RIFKIND, WHARTON & GARRISON
                           1285 Avenue of the Americas
                            New York, New York 10019

                                                                 August 27, 1999

CD Radio Inc.
1221 Avenue of the Americas
New York, New York 10020

                       Registration Statement on Form S-3
                                of CD Radio Inc.

Ladies and Gentlemen:

                  In connection with the Registration Statement on Form S-3 (the
"Registration Statement") filed by CD Radio Inc., a Delaware corporation (the
"Company"), with the Securities and Exchange Commission today, as provided by
the Securities Act of 1933, as amended (the "Act"), and the rules and
regulations under the Act, the Company has requested that we consent to the use
of our name in the Registration Statement. The Registration Statement relates to
the registration under the Act of (1) the Company's debt securities, (2) the
Company's preferred stock, par value $0.001 per share, (3) the Company's common
stock, par value $0.001 per share, and (4) warrants which may be preferred stock
warrants, debt warrants, or common stock warrants.







<PAGE>


CD Radio Inc.                                                                 2

                  We consent to the use of our name in the Registration
Statement and in the prospectus included in the Registration Statement as it
appears under the caption entitled "Legal Matters." In giving this consent, we
do not admit that we come within the category of persons whose consent is
required by the Act or by the rules and regulations under the Act.

                                               Very truly yours,
                             /s/ Paul, Weiss, Rifkind, Wharton & Garrison
                             PAUL, WEISS, RIFKIND, WHARTON & GARRISON








<PAGE>


                     [LETTERHEAD OF WILEY, REIN & FIELDING]


                                 August 26, 1999

CD Radio Inc.
1221 Avenue of the Americas
New York, NY 10020
Ladies and Gentlemen:

        In connection with the Registration Statement on Form S-3 (the
"Registration Statement") filed by CD Radio Inc., a Delaware corporation (the
"Company"), with the Securities and Exchange Commission (the "Commission") on
August 27, 1999, as provided by the Securities Act of 1933, as amended (the
"Act"), and the rules and regulations under the Act, we consent to the use of
our name in the Registration Statement and in the prospectus in the Registration
Statement as it appears in the caption "Legal Matters" and to the use of this
consent as an exhibit to the Registration Statement. In giving this consent, we
do not admit that we are "Experts" or that we come within the category of
persons whose consent is required by the Act or by the rules and regulations
under the Act.

        Our consent to having passed upon certain regulatory issues arising
under the Communications Act is limited to matters arising under or involving
federal communications laws, communications treaties and federal communications
regulations relevant to the proposed satellite radio operations of the Company
in the United States as described in the prospectus, including the
Communications Act of 1934, as amended, and the rules, regulations and written
policies promulgated thereunder by the Federal Communications Commission, the
International Telecommunication Union Constitution and Convention dated 1992,
and the International Radio Regulations promulgated thereunder dated 1992
(collectively, "Communications Laws"). We have not passed upon and do not
consent to be listed as having passed upon matters arising under or involving
any laws other than the Communications Laws, any jurisdiction other than the
United States, or any state of the United States.

        This consent is being furnished to you subject to the qualifications and
limitations expressed herein, and has been prepared solely for the use and
benefit of the Company in connection with the Registration Statement. The
consent expressed herein is as of the date hereof.

                                                   Very truly yours,


                                               /s/ Wiley, Rein & Fielding
                                                   Wiley, Rein & Fielding







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