CD RADIO INC
S-3, 1999-08-25
RADIO BROADCASTING STATIONS
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<PAGE>
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 25, 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>
<CAPTION>
<S>                                <C>                                <C>
            DELAWARE                             4899
 (STATE OR OTHER JURISDICTION OF     (PRIMARY STANDARD INDUSTRIAL                52-1700207
 INCORPORATION OR ORGANIZATION)       CLASSIFICATION CODE NUMBER)     (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 the
effective date of this registration statement.
     If the only 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 are 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

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<CAPTION>                                                      PROPOSED       PROPOSED
                                                               MAXIMUM        MAXIMUM      AMOUNT OF
    TITLE OF EACH CLASS OF SECURITIES        AMOUNT TO BE   OFFERING PRICE   AGGREGATE    REGISTRATION
             TO BE REGISTERED                 REGISTERED     PER SECURITY  OFFERING PRICE     FEE
   ----------------------------------        -----------    -------------  --------------  ------------
<S>                                        <C>              <C>            <C>            <C>

Warrants to purchase common stock, par
  value $0.001 per share..................     600,000          N/A(1)         N/A(1)        N/A(1)
Common stock, par value $0.001 per
  share(2)................................ 2,190,000(3)(4)    $28.60(5)    $62,634,000(6)  $17,412.25
</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) In accordance with Rule 457(g) under the Securities Act, no separate
    registration fee is payable in respect of the warrants to purchase common
    stock.
(2) This registration statement also applies to rights under our rights
    agreement, which are attached to and tradeable only with the shares of
    common stock registered under this registration statement. No registration
    fees are required for these rights as they will be issued for no additional
    consideration.
(3) Represents the shares of common stock issuable upon the exercise of the
    warrants.
(4) In accordance with Rule 416 under the Securities Act, we are also
    registering the indeterminate number of additional shares of common stock
    and other securities that may become issuable from time to time in
    accordance with the adjustment provisions of the warrants.
(5) Represents the price at which the warrants may be exercised.
(6) Estimated solely for the purpose of calculating the registration fee under
    Rule 457(g) of the Securities Act.


________________________________________________________________________________

<PAGE>
THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE AMENDED. WE MAY
NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL NOR IS IT SEEKING AN OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE
THE OFFER OR SALE IS NOT PERMITTED.

                  SUBJECT TO COMPLETION, DATED AUGUST 25, 1999

PRELIMINARY PROSPECTUS

                                     [LOGO]

                   600,000 WARRANTS TO PURCHASE COMMON STOCK
                        2,190,000 SHARES OF COMMON STOCK

     This prospectus relates to 600,000 warrants to purchase our common stock
and 2,190,000 shares of our common stock which may be issued upon exercise of
these warrants.

     Each warrant may be exercised to purchase 3.65 shares of our common stock
at a price of $28.60 per share.

     The holders of the warrants may offer to sell their warrants from time to
time following the effective date of the registration statement. The selling
warrant holders will receive all the proceeds from the sale of the warrants. We
will receive the proceeds of any exercise of the warrants.

     The warrants will become exercisable on the earlier of May 18, 2000 and the
effective date of a change of control in CD Radio. Unless exercised, the
warrants will expire automatically on May 15, 2009.

     Our common stock is traded on the Nasdaq National Market under the symbol
'CDRD.' On August 24, 1999, the last reported sale price of our common stock on
the Nasdaq National Market was $26 3/8.

     INVESTING IN OUR WARRANTS AND COMMON STOCK INVOLVES RISKS. SEE 'RISK
FACTORS' BEGINNING ON PAGE 8.

     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

<PAGE>
                               TABLE OF CONTENTS

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                                                              PAGE
                                                              ----
<S>                                                           <C>
Special Note Regarding Forward Looking Statements...........    2
Summary.....................................................    3
Risk Factors................................................    8
Use of Proceeds.............................................   19
Price Range of Common Stock.................................   19
Dividend Policy.............................................   19
Description of the Warrants.................................   20
Book Entry; Delivery and Form...............................   26
Certain U.S. Federal Income Tax Considerations..............   28
Recent Developments.........................................   31
Selling Warrant Holders.....................................   32
Plan of Distribution........................................   32
Legal Matters...............................................   34
Experts.....................................................   34
Where You Can Obtain Additional Available Information.......   34
Incorporation by Reference..................................   34
</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 Loral and 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>
                                    SUMMARY

     This summary highlights information contained elsewhere in this prospectus.
Because it is a summary, it may not contain all of the information that is
important to you. To understand this offering fully, you should read this entire
prospectus carefully, including the 'Risk Factors' section, the financial
statements and the documents incorporated by reference into this prospectus.

                               ABOUT OUR BUSINESS

     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 Federal Communications Commission (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 megahertz ('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 entertainment 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.

     As an entertainment company, we intend to design and originate programming
on each of our 50 commercial-free music channels. Each channel will be operated
as a separate radio station with a distinct format. These formats will include a
variety of classical, popular, rock, jazz, soul, contemporary, Latin, country,
alternative and children's music. The actual formats will be determined before
the launch of the service and may be varied from time to time to optimize
customer satisfaction. Some of the music channels will offer continuous music
while others will have program hosts, depending on the type of music
programming.

     Programming on our non-music channels will be provided by third parties,
and to date we have entered into programming agreements with content providers
for 22 of these channels, including NPR, BBC, Bloomberg News Radio, C-SPAN and
Sports Byline USA. A majority of our non-music channels will contain
advertising, which will augment our subscription revenue. These channels will
include news and talk shows and special interest programming directed to a
diverse range of groups, including sports enthusiasts, Hispanic listeners and
truck drivers.

     On June 11, 1999, we entered into an agreement with FORD MOTOR COMPANY
('Ford') which anticipates Ford manufacturing, marketing and selling vehicles
that include receivers capable of receiving CD Radio's broadcasts.

     We have also established relationships with major industry suppliers to
design and/or develop the most important elements of our system:

     SPACE SYSTEMS/LORAL, INC. ('Loral') is constructing and will launch and
deliver our satellites in-orbit and checked-out. Loral is a leading full-service
provider of commercial satellite systems and services. Loral has scheduled the
launch of our satellites for January, March and May of 2000 on Proton launch
vehicles. Proton launch vehicles have an overall reliability of 92% based on
their last 50 flights.

     LUCENT TECHNOLOGIES, INC. is developing and will manufacture a custom
designed chip set, the essential element of CD Radio receivers, to perform all
of the digital signal processing of CD Radio's broadcasts.

     DELCO ELECTRONICS CORPORATION is designing and developing and has agreed to
manufacture three-band (AM/FM/CD Radio) receivers and satellite antennas for
sale to major automotive manufacturers. Delco is the world's largest producer of
audio systems for original automotive equipment manufacturers and is a leader in
mobile communications technology.

     ALPINE ELECTRONICS INC. is designing and developing FM modulated receivers
(which enable FM radios to receive CD Radio broadcasts) and three-band receivers
for installation by automotive

                                       3

<PAGE>
manufacturers and sale to consumers in the electronics aftermarket. Alpine, a
leading manufacturer of high performance mobile electronics, has specialized in
car audio products for over 30 years and has provided original high-end audio
systems directly to many automotive manufacturers, including Ford, Honda, Acura
and BMW.

     A subsidiary of Matsushita, the world's largest consumer electronics
company and the maker of PANASONIC products, is designing and developing
three-band receivers for installation by automotive manufacturers and for sale
to consumers in the electronics aftermarket.

     RECOTON CORPORATION is designing and developing FM modulated receivers,
radio cards (wireless adapters for cassette players) and hard-wired and wireless
satellite antennas. Recoton, the owner of the Jensen, Advent, AR/Acoustic
Research and InterAct brands, is the third largest producer of aftermarket car
stereos sold in the United States and has one of the largest distribution
systems for automotive consumer electronics, with over 30,000 points of
presence.

                          THE CD RADIO DELIVERY SYSTEM

     The CD Radio delivery system will consist of three principal components:

     THE SATELLITES. To provide CD Radio, we have contracted with Loral to build
four satellites, to arrange for launch service providers to launch three of
these satellites and to deliver the three launched satellites, in-orbit, by June
30, 2000. We intend to hold the fourth satellite as a ground spare.

     Our satellites will incorporate a design which will act as a 'bent pipe,'
relaying signals received from uplink transmittals directly to vehicles on the
ground. Our satellites will not contain on-board processors. All of our
processing operations will be on the ground where they will be accessible for
maintenance and continuing technological upgrade without the need to launch
replacement satellites.

     In May 1998, we announced our plan to change the orbital location of our
satellites from geostationary orbits over the equator to inclined elliptical
orbits. This modification will allow our satellites to maximize the time spent
over the continental United States, which will permit us to fully utilize the
bandwidth allocated to us by the FCC. This modification must be approved by the
FCC, which we have requested.

     THE NATIONAL BROADCAST STUDIO. We will originate up to 100 channels of
programming from our National Broadcast Studio in Rockefeller Center in New York
City. The National Broadcast Studio will house our music library, facilities for
programming origination, programming personnel and program hosts, as well as
facilities to transmit programming to our orbiting satellites, to activate or
deactivate service to subscribers and to perform the tracking, telemetry and
control of our satellites.

     THE RECEIVERS. We expect consumers will receive CD Radio either by
purchasing specially designed radio receivers for their existing vehicles or
through a new generation of three-band radios which will come fully installed in
new vehicles by automobile manufacturers.

     In the automotive aftermarket, we expect that CD Radio subscribers will
have the choice of one of three different receiving devices for their cars -- an
FM modulated receiver, a three-band receiver and a radio card.

      FM Modulated Receivers. The CD Radio FM modulated receiver will be usable
      in all vehicles that have an FM radio, which represent approximately 95%
      of all U.S. vehicles. Each FM modulated receiver will operate with a
      device that will be approximately the size of a 35mm camera, and will be
      mounted either in the vehicle's trunk, behind the dashboard, in the glove
      compartment or under a seat. We expect the retail price of this FM
      modulated receiver, with a hard-wired satellite antenna and professional
      installation, will be approximately $299.

                                       4

<PAGE>
      Three-Band Receivers. We expect that consumers who wish to replace their
      vehicle's sound system will be able to purchase receivers capable of
      receiving AM, FM and CD Radio broadcasts. We expect the retail price of
      these CD Radio-ready receivers, including the antenna and professional
      installation, will be approximately $150 more than similar receivers that
      are not capable of receiving CD Radio broadcasts.

      Radio Cards. CD Radio's wireless adapter, or radio card, will not require
      professional installation and will be usable by all vehicles in the United
      States equipped with a cassette player, which represent approximately 65%
      of all vehicles on the road. We expect the retail price of the radio card,
      including the wireless satellite antenna, will be approximately $199.

     All CD Radio receivers will have a visual display that will indicate the
channel and format selected, as well as the title, recording artist and album
title of the musical selection being played.

     Each of the elements of the CD Radio system -- satellites, terrestrial
repeater network, National Broadcast Studio and CD Radio receivers -- is on
schedule to permit us to begin operations at the end of the fourth quarter of
2000.

                                  RISK FACTORS

     Please refer to the section of this prospectus entitled 'Risk Factors'
beginning on page 8, for a discussion of some of the risks you should consider
before purchasing or exercising warrants for our common stock.

                            ------------------------
     Our principal executive offices are located at 1221 Avenue of the Americas,
New York, New York 10020. Our telephone number is (212) 584-5100. Our internet
address is cdradio.com. The information on our website is not incorporated in
this prospectus.

                                       5

<PAGE>
                                  THE OFFERING

<TABLE>
<S>                                         <C>
SECURITIES OFFERED........................  600,000 warrants, each to purchase 3.65 shares of our
                                            common stock, and 2,190,000 shares of our common stock
                                            issuable upon the exercise of the warrants.

                                            We issued and sold these warrants in a private placement
                                            to a group of initial purchasers consisting of Merrill
                                            Lynch & Co., Lehman Brothers, Bear, Stearns & Co. Inc.,
                                            NationsBanc Montgomery Securities LLC and U.S. Bancorp
                                            Libra, as part of units, each consisting of $1,000
                                            principal amount of our 14 1/2% senior secured notes due
                                            2009 and 3 warrants. Holders of the warrants will be
                                            entitled to acquire an aggregate of 2,190,000 shares of
                                            our common stock. The number of shares of our common
                                            stock to be issued under the 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.

EXPIRATION DATE...........................  The warrants will expire on May 15, 2009.

EXERCISE..................................  You will not be able to exercise your warrants before
                                            the earliest to occur of:

                                            the effective date of a change of control in CD Radio
                                            (as described under the heading 'Description of the
                                             Warrants' in this prospectus), or

                                            May 18, 2000.

                                            You may exercise the warrants only if (1) the issuance
                                            of the common stock is covered by an effective
                                            registration statement under the Securities Act or (2)
                                            the exercise of the warrants is exempt from the
                                            registration requirements under the Securities Act, and
                                            the warrant shares are qualified for sale or exempt from
                                            qualification under state or local laws. We are not
                                            required in many instances to have a registration
                                            statement available.

EXERCISE PRICE............................  $28.60 per share.

RIGHTS AS STOCKHOLDERS....................  Holders of unexercised warrants will not have any of the
                                            rights which our stockholders possess.

WARRANT AGENT.............................  United States Trust Company of New York.

REGISTRATION RIGHTS.......................  We are registering the warrants on a shelf registration
                                            statement as required under the warrant agreement
                                            between us and the warrant agent. Under the terms of the
                                            warrant agreement, we are required to maintain the
                                            effectiveness of a registration statement covering the
                                            warrants until the earliest of (1) May 18, 2001,
                                            (2) the time when all warrants have been sold under the
                                            shelf registration statement and (3) the time when the
                                            warrants can be sold by persons who are not our
                                            affiliates without restriction under the Securities Act.

                                            We are also registering the warrant shares on a shelf
                                            registration statement as required under the warrant
                                            agreement. Under the terms of the warrant agreement, we
</TABLE>

                                       6

<PAGE>

<TABLE>
<S>                                         <C>
                                            are required to maintain the effectiveness of a
                                            registration statement covering the issuance of the
                                            common stock underlying the warrants until the earlier
                                            of (1) the time when all warrants have been exercised
                                            and (2) May 15, 2009.

                                            Holders of warrants and warrant shares also have the
                                            right to include their warrants and warrant shares 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.

                                            Assuming we comply with our registration rights
                                            obligations with respect to a 'piggy-back' registration
                                            of warrants or warrant shares, all holders of the
                                            warrants and warrant shares will be required, upon
                                            request of the underwriters of a public offering of our
                                            common stock or securities convertible into our common
                                            stock, not to sell or dispose of any warrants and
                                            warrant shares for a period not to exceed 30 days prior
                                            to, and 90 days after, the completion of that offering.

USE OF PROCEEDS...........................  We will not receive any proceeds from the sale of the
                                            warrants, although we will receive the proceeds of any
                                            exercise of the warrants. Assuming all the warrants are
                                            exercised, the total proceeds to us of the issuance of
                                            the warrant shares will be $62,634,000.

NASDAQ NATIONAL MARKET SYMBOL.............  CDRD

DIVIDED POLICY............................  We have never declared or paid any cash dividends on our
                                            common stock and do not anticipate paying cash dividends
                                            in the foreseeable future.
</TABLE>

                                       7

<PAGE>
                                  RISK FACTORS

     In addition to the other information in this prospectus, the following
factors should be considered carefully in evaluating us and our business. This
prospectus contains some forward-looking statements. Actual results and the
timing of some events could differ materially from those projected in the
forward looking statements due to a number of factors, including those described
below and elsewhere in this prospectus. See 'Special Note Regarding Forward
Looking Statements.'

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 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. 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

                                       8

<PAGE>
      the proceeds from our sale 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.

     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:

<TABLE>
<S>                                                           <C>
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

</TABLE>
     After we give effect to the funds we have and the funds we expect to raise,
we estimate that we will need an additional approximately $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

                                       9

<PAGE>
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 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,

                                       10

<PAGE>
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.

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). However, we, and not Loral, will
be at risk for anything that happens to the satellites at the time of launch and
thereafter (in the case of our first three satellites) or at any time after
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

                                       11

<PAGE>
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, which is approximately $18 million more than originally estimated.

     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

      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.

                                       12

<PAGE>
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 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.

                                       13

<PAGE>
     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.

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;

                                       14

<PAGE>
      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.

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. 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

                                       15

<PAGE>
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.

     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.

                                       16

<PAGE>
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.

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
Cumulative Convertible 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.

                                       17

<PAGE>
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 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.

                                       18

<PAGE>
                                USE OF PROCEEDS

     We will not receive any proceeds from the sale of the warrants, although we
will receive the proceeds of any exercise of the warrants. Assuming all the
warrants are exercised, the total proceeds of the issuance of the warrant shares
will be $62,634,000; the selling holders of the warrants will receive all the
proceeds from the sale of the warrants.

                          PRICE RANGE OF COMMON STOCK

     Our common stock has been traded on the Nasdaq National Market since
October 24, 1997 and before that date was traded on the Nasdaq Small Cap Market,
in each case under the symbol 'CDRD.' The following table sets forth the high
and low sales prices for our common stock, as reported by the Nasdaq National
Market, for the periods indicated below since October 24, 1997, and the high and
low bid prices for our common stock, as reported by the National Association of
Securities Dealers Automated Quotation System for the periods indicated below
prior to that date. The latter prices reflect interdealer quotations without
retail markups, markdowns, fees or commissions and do not necessarily reflect
actual transactions.

<TABLE>
<S>                                                           <C>       <C>
1997:
     First Quarter..........................................  $ 8       $ 3 9/16
     Second Quarter.........................................   20 1/4    10 3/4
     Third Quarter..........................................   20        14
     Fourth Quarter.........................................   24 5/8    16 5/8
1998:
     First Quarter..........................................   24 1/4    11 1/2
     Second Quarter.........................................   44        21 3/4
     Third Quarter..........................................   38 7/16   14 3/4
     Fourth Quarter.........................................   39 7/8    14 1/4
1999:
     First Quarter..........................................   38 5/8    20 1/2
     Second Quarter.........................................   32        19 1/2
     Third Quarter (through August 24, 1999)................   38 1/2    25 1/2
</TABLE>

     On August 24, 1999 the last reported sale price of our common stock on the
Nasdaq National Market was $26 3/8 per share. On August 9, 1999, there were
approximately 230 holders of record of our common stock.

                                DIVIDEND POLICY

     We have never paid cash dividends on our capital stock. We currently intend
to retain earnings, if any, for use in our business and do not anticipate paying
any cash dividends in the foreseeable future. The indentures governing our
senior secured notes, our senior secured discount notes and our convertible
subordinated notes and our bank credit agreement contain or will contain
provisions that limit our ability to pay dividends on our preferred stock and
our common stock. The certificates of designation for our preferred stock
contain provisions that also limit our ability to pay dividends on our common
stock.

                                       19

<PAGE>
                          DESCRIPTION OF THE WARRANTS

GENERAL

     We issued the warrants 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 following summary of the principal provisions of the warrant agreement
does not purport to be complete and is subject to, and qualified in its entirety
by reference to, all the provisions of the warrants and the warrant agreement,
including the definitions of terms contained in the agreement.

     Copies of the warrant agreement are available upon request from us or the
warrant agent. For definitions of specific capitalized terms used in this
summary, see ' -- Certain Definitions' below.

     One warrant will entitle its registered holder, from and after the
Exercisability Date and before 5:00 P.M., New York City time, on May 15, 2009
(the 'Warrant Expiration Date'), to purchase from us 3.65 shares of our common
stock at an exercise price (the 'Exercise Price') of $28.60 per share of common
stock issuable upon exercise of the warrants (the 'warrant shares'). Both the
Exercise Price and the number of securities issuable upon exercise of the
warrants are subject to adjustments as provided in the warrant agreement.

     Holders may exercise warrants on any business day on or after the
Exercisability Date and on or prior to the Warrant Expiration Date. Any warrant
not exercised before the close of business on the Warrant Expiration Date will
become void, and all rights of the holder under the warrant certificate
evidencing the warrant and under the warrant agreement will cease.

EXERCISE

     Holders may exercise warrants by:

      surrendering the warrant certificate evidencing their warrants after duly
      completing and executing the form of election to purchase shares of common
      stock shown on the reverse side of the warrant certificate; and

      paying the exercise price for the warrants in full at the office or agency
      designated for that purpose, which initially is the corporate trust office
      or agency of the warrant agent in New York, New York.

     A holder may exercise a warrant only in whole. The Exercise Price may be
paid in full, at the option of the holder either:

      in cash or by certified or official bank check;

      by a Cashless Exercise (as defined below); or

      by any combination of the above.

To effect a Cashless Exercise, the holder is entitled to exercise a warrant or
warrants without payment of the Exercise Price in cash by surrendering (which
surrender will be evidenced by cancellation of the number of warrants
represented by any warrant certificate presented in connection with a Cashless
Exercise) the warrant or warrants (represented by one or more warrant
certificates), and, in exchange for them, receiving the number of shares of
common stock obtained by multiplying:

          (1) the number of shares of Common Stock for which the warrant or
              warrants are exercisable with payment in cash of the Exercise
              Price as of the date of exercise, and

          (2) the Cashless Exercise Ratio (as defined below).

For this purpose, the 'Cashless Exercise Ratio' is a fraction, the numerator of
which is the excess of the Current Market Value per share of common stock on the
date of exercise over the exercise price per share as of the date of exercise
and the denominator of which is the Current Market Value per share of common
stock on the date of exercise. The warrant agreement describes how we will
calculate the 'Current Market Value per share of common stock.'

                                       20

<PAGE>
     If a holder surrenders a warrant certificate representing more than one
warrant in connection with the holder's option to elect a Cashless Exercise, the
number of shares of common stock deliverable upon a Cashless Exercise will be
equal to the Cashless Exercise Ratio multiplied by the product of (1) the number
of warrants that the holder specifies is to be exercised as part of the Cashless
Exercise and (2) the number of shares of common stock for which each warrant is
exercisable (without giving effect to the Cashless Exercise).

     All provisions of the warrant agreement will be applicable with respect to
the surrender of a warrant certificate as part of a Cashless Exercise in
connection with the exercise of less than the full number of warrants
represented by the certificate. We will make no payment or adjustment on account
of any dividends on the common stock which may be issued upon exercise of a
warrant.

     As soon as practicable after the occurrence of an Exercise Event which is a
Warrant Change of Control, we will send to each holder of warrants and to each
beneficial owner of the warrants, to the extent that the warrants are held of
record by a depository or other agent, by first-class mail, at the addresses
appearing on the warrant register, a notice of the Exercise Event. This notice
will describe the Warrant Change of Control, its date of occurrence and the date
of expiration of the right to exercise the warrants prominently on the face of
the notice.

     Holders of warrant certificates may surrender them for exercise or
exchange, and register the transfer of their warrant certificates, at our office
or agency maintained for this purpose, which initially is the corporate trust
office of the warrant agent in New York, New York. We issued the warrant
certificates initially in global form and in registered form as definitive
warrant certificates. We will impose no service charge for any exercise,
exchange or registration of transfer of warrant certificates, but we may require
payment of a sum sufficient to cover any tax or other governmental charge
payable in connection with the transfer.

NO RIGHTS AS STOCKHOLDERS

     Except as expressly described in the warrant agreement, the holders of
unexercised warrants are not entitled, in this capacity, to receive dividends or
other distributions, receive notice of any meeting of stockholders, consent to
any action of stockholders or receive notice of any other stockholder
proceedings, or to any other rights exercised by our stockholders.

DISTRIBUTION RIGHTS; ADJUSTMENT TO EXERCISE RATE; MERGER OR CONSOLIDATION

     The number of warrant shares issuable upon exercise of a warrant (the
'Exercise Rate') will be adjusted from time to time when specific events occur
including:

      some dividends or distributions on shares of common stock payable in
      shares of common stock or some of our other capital stock;

      subdivisions, combinations or some reclassifications of shares of our
      common stock;

      the distribution to all holders of common stock of any of our assets
      (including cash), debt securities, preferred stock or any rights or
      warrants to purchase any of these securities other than ordinary cash
      dividends at a rate not exceeding that specified in the warrant agreement;

      our issuance of shares of common stock or of securities convertible into
      or exchangeable or exercisable for shares of common stock at a price below
      the then Current Market Value, other than issuances:

          (1) upon the exercise of the warrants as provided by the warrant
              agreement,

          (2) upon the conversion, exchange or exercise of any convertible,
              exchangeable or exercisable security as to which the issuance of
              the security has previously been the subject of any required
              adjustment as provided in the warrant agreement,

          (3) upon the conversion, exchange or exercise of convertible,
              exchangeable or exercisable securities outstanding on May 18, 1999
              (to the extent as provided under the terms of those securities as
              in effect on that date) and

                                       21

<PAGE>
          (4) of our 9.2% Series B Junior Cumulative Convertible Preferred Stock
              or upon conversions of this stock.

Notwithstanding the above, no adjustment in the Exercise Rate will be required
upon the issuance, conversion, exchange or exercise of options to acquire shares
of common stock by our officers, directors or employees; provided that the
aggregate number of shares of common stock issued or issuable under those
options shall not exceed 1% of our common stock on a fully diluted basis on May
18, 1999.

     If, in a single transaction or through a series of related transactions, we
consolidate with or merge with or into any other person or sell, assign,
transfer, lease, convey or otherwise dispose of all or substantially all of our
properties and assets to another person or group of affiliated persons or are a
party to a merger or binding share exchange which reclassifies or changes our
outstanding Common Stock (a 'Fundamental Transaction'), then, as a condition to
consummating any of these transactions, the person formed by or surviving the
consolidation or merger (if other than us) or the person to whom the transfer
has been made (the 'Surviving Person') will enter into a supplemental warrant
agreement. The supplemental warrant agreement will provide:

      that the holder of a warrant then outstanding is entitled to exercise it
      for the kind and amount of securities, cash or other assets which the
      holder could have received immediately after the Fundamental Transaction
      if the holder had exercised the warrant immediately before the effective
      date of the transaction (regardless of whether the warrants are then
      exercisable and without giving effect to the Cashless Exercise option),
      assuming (to the extent applicable) that the holder:

          (1) was not a constituent person or an affiliate of a constituent
              person to the transaction;

          (2) made no election with respect to the transaction; and

          (3) was treated alike with the plurality of non-electing holders; and

      that the Surviving Person will succeed to and be substituted for all of
      our rights and obligations in respect of the warrant agreement and the
      warrants.

     Notwithstanding the above, if we enter into a Fundamental Transaction with
another person (other than one of our subsidiaries) and consideration is payable
to holders of the shares of capital stock (or other securities or property)
issuable or deliverable upon exercise of the warrants that are exercisable in
exchange for their shares in connection with the Fundamental Transaction which
consists solely of cash, then the holders of warrants shall be entitled to
receive distributions on the date of the event on an equal basis with holders of
those shares (or other securities issuable upon exercise of the warrants) as if
the warrants had been exercised immediately before the event, less the Exercise
Price for the warrants. Upon receipt of this payment, if any, the rights of a
holder of a warrant shall terminate and cease and the holder's warrants shall
expire.

     In the event of a taxable distribution to holders of shares of our common
stock which results in an adjustment to the number of shares of common stock or
other consideration for which a warrant may be exercised, the holders of the
warrants may, in some circumstances, be deemed under applicable law to have
received a distribution subject to United States federal income tax as a
dividend.

     We are not required to issue fractional shares of Common Stock upon
exercise of warrants. We will pay a cash adjustment instead of fractional
shares, except in limited circumstances.

     We may amend and modify some of the provisions of the warrant agreement. In
addition, we and the warrant agent may amend and modify most provisions of the
warrant agreement with the consent of the holders of the warrants representing a
majority in number of warrants then outstanding.

CERTAIN COVENANTS

     We will file the reports which we are required to file under the Exchange
Act and the rules, regulations and policies adopted by the Commission under this
statute in a timely manner in

                                       22

<PAGE>
accordance with the requirements of the Securities Act and the Exchange Act and,
if at any time we are not required to file those reports, we will, upon the
request of any holder or beneficial owner of warrants, make available whatever
information is necessary to permit sales in accordance with Rule 144A under the
Securities Act.

     We will also comply with all applicable laws, including the Securities Act
and any applicable state securities laws, in connection with the offer and sale
of Common Stock (and other securities and property deliverable) upon exercise of
the warrants.

REGISTRATION RIGHTS

WARRANTS

     Shelf Registration. Under the warrant agreement, we agreed to file and use
our best efforts to cause to be declared effective no later than October 15,
1999 a warrant shelf registration statement and to keep the registration
statement effective until the earliest of:

      the time when all of the warrants have been sold under the registration
      statement;

      two years after its effective date; and

      the time when the warrants can be sold without restriction under the
      Securities Act.

This prospectus is a part of the warrant shelf registration statement.

     During any 365-day period, we may suspend the availability of the warrant
shelf registration statement for up to three periods of up to 30 consecutive
days, but no more than an aggregate of 60 days during any 365-day period (the
'Warrant Suspension Period'), if any event occurs as a result of which it is
necessary, in the good faith determination of our board of directors, to amend
the warrant shelf registration statement or amend or supplement any related
prospectus or prospectus supplement, so that each of these documents does not
include any untrue statement of fact or omit to state a material fact necessary
to make the statements in these documents not misleading in light of the
circumstances under which they were made.

     Piggy-Back Registration. Holders of warrants also have the right to include
their warrants in any registration statement under the Securities Act that we
file for our own account or for the account of any of our security holders
covering the sale of our common equity securities (other than (a) a registration
statement on Form S-4 or S-8 or (b) a registration statement filed in connection
with an offer of securities solely to existing security holders) for sale on the
same terms and conditions as our securities or the other selling security
holders included in the registration statement (a 'Warrant Piggy-Back
Registration'). In case of a Warrant Piggy-Back Registration, the number of
warrants requested to be included will be subject to proportional reduction
(based on the number of warrants requested to be included in the offering by all
warrant holders) to the extent that we are advised by the managing underwriter,
if any, for the offering that the total number or type of warrants and other
securities proposed to be included by us or under the registration rights of
other holders would materially and adversely affect the success of the offering.
The provisions in the preceding section relating to the effect of a Warrant
Suspension Period also apply to a Warrant Piggy-Back Registration.

     If we comply with all our obligations under the warrant agreement with
respect to a Warrant Piggy-Back Registration relating to an underwritten public
offering, all holders of warrants and warrant shares, if so requested by the
lead managing underwriter with respect to the underwritten public offering (or
any other underwritten offering for which registration rights are not available
to holders of the warrants), will be required not to sell or otherwise dispose
of any warrant or warrant shares they own for a period not to exceed 30 days
prior to, or 90 days after, the completion of the underwritten public offering.

     Each holder of warrants that sells warrants using a registration statement,
generally, will be required to be named as a selling security holder in the
related prospectus and to deliver a prospectus to the purchaser, will be subject
to some of the civil liability provisions of the Securities

                                       23

<PAGE>
Act related to the sales and will be bound by provisions of the warrant
agreement which are applicable to the holder (including specific indemnification
obligations).

     In addition, each holder of warrants will be required to deliver
information to be used as part of a registration statement in order to have
resales of its warrants covered by the registration statement.

WARRANT SHARES

     Shelf Registration. Under the warrant agreement, we agreed to file and use
our best efforts to cause to be declared effective, on or before the
Exercisability Date, a warrant shares shelf registration statement and to keep
this registration statement effective until the earlier of (1) the time when all
warrants have been exercised and (2) May 15, 2009. This prospectus is a part of
the warrant shares shelf registration statement.

     During any 365-day period, we may suspend the availability of the warrant
shares shelf registration statement for up to three periods of up to 30
consecutive days, but no more than an aggregate of 60 days during any 365-day
period (the 'Warrant Shares Suspension Period'), if any event occurs, as a
result of which it is necessary, in the good faith determination of our board of
directors, to amend the warrant shares shelf registration statement or amend or
supplement any related prospectus or prospectus supplement, so that each of
those documents does not include any untrue statement of fact or omit to state a
material fact necessary to make the statements in these documents not misleading
in light of the circumstances under which they were made.

     Piggy-Back Registration. From and after the Exercisability Date, holders of
warrants will also have the right to include warrant shares issuable upon
exercise of their warrants in any registration statement under the Securities
Act that we file for our own account or for the account of any of our security
holders covering the sale of our common stock (other than (a) a registration
statement on Form S-4 or S-8 or (b) a registration statement filed as part of an
offer of securities solely to existing security holders) for sale on the same
terms and conditions as our securities or the other selling security holders
included in the registration statement (a 'Warrant Shares Piggy-Back
Registration'). In case of a Warrant Shares Piggy-Back Registration, the number
of Warrant Shares requested to be included in the offering will be subject to
pro rata reduction (based on the number of warrants requested to be included in
the offering by all warrant holders) to the extent that the Company is advised
by the managing underwriter, if any, for the offering that the total number or
type of warrant shares and other securities proposed to be included by us or
under registration rights of other holders would materially and adversely affect
the success of the offering. The provisions in the preceding section relating to
the effect of a Warrant Shares Suspension Period also apply to a Warrant Shares
Piggy-Back Registration.

     If we comply with all our obligations under the warrant agreement with
respect to a Warrant Shares Piggy-Back Registration relating to an underwritten
public offering, all holders of warrants and warrant shares, if so requested by
the lead managing underwriter with respect to the underwritten public offering
(or any other underwritten offering for which registration rights are not
available to holders of the warrants), will be required not to sell or otherwise
dispose of any warrant or warrant shares they own for a period not to exceed 30
days before, or 90 days after, the consummation of the underwritten public
offering.

CERTAIN DEFINITIONS

     'Common Stock' is defined in the warrant agreement to include our common
stock, par value $0.001 per share, and any other class or series of our common
equity equivalent shares that we create.

     'Current Market Value' per share of our Common Stock or any other security
at any date means:

          (1) if the security is not registered under the Exchange Act,

                                       24

<PAGE>
             (a) the value of the security, determined in good faith by our
                 board of directors and certified in a board resolution, based
                 on the most recently completed arms-length transaction between
                 us and a Person other than one of our affiliates and the
                 closing of which occurs on that date or shall have occurred
                 within the six-month period preceding that date, or

             (b) if no transaction of the type described above shall have
                 occurred on that date or within the six-month period, the fair
                 market value of the security as determined by a nationally or
                 regionally recognized independent financial expert (provided
                 that, in the case of the calculation of Current Market Value
                 for determining the cash value of fractional shares, any
                 determination within six months that is, in the good faith
                 judgment of our board of directors, a reasonable determination
                 of value, may be utilized) or

          (2) if the security is registered under the Exchange Act,

             (a) the average of the daily closing sales prices of the securities
                 for the 20 consecutive trading days immediately preceding that
                 date, or

             (b) if the securities have been registered under the Exchange Act
                 for less than 20 consecutive trading days before that date,
                 then the average of the daily closing sales prices for all of
                 the trading days before that date for which closing sales
                 prices are available,

in the case of each of (2)(a) and (2)(b), as certified to the warrant agent by
our President, any Vice President or the Chief Financial Officer. The closing
sales price for each of those trading days shall be:

           in the case of a security listed or admitted to trading on any United
           States national securities exchange or quotation system, the closing
           sales price, regular way, on that day or, if no sale takes place on
           that day, the average of the closing bid and asked prices on that
           day,

           in the case of a security not then listed or admitted to trading on
           any United States national securities exchange or quotation system,
           the last reported sale price on that day or, if no sale takes place
           on that day, the average of the closing bid and asked prices on that
           day, as reported by a reputable quotation source that we designate,

           in the case of a security not then listed or admitted to trading on
           any United States national securities exchange or quotation system
           and as to which no reported sale price or bid and asked prices are
           available, the average of the reported high bid and low asked prices
           on that day, as reported by a reputable quotation service, or a
           newspaper of general circulation in the Borough of Manhattan, City
           and State of New York, customarily published on each business day
           that we designate, or, if there shall be no bid and asked prices on
           that day, the average of the high bid and low asked prices, as so
           reported, on the most recent day (not more than 30 days before the
           date in question) for which prices have been so reported and

           if there are no bid and asked prices reported during the 30 days
           before the date in question, the Current Market Value shall be
           determined as if the securities were not registered under the
           Exchange Act.

     'Exercise Event' is defined in the warrant agreement to have occurred upon
the earlier of (i) immediately before a Warrant Change of Control, or (ii) May
18, 2000.

     'Exercisability Date' means the date on which there shall have occurred an
Exercise Event.

     'Issue Date' means May 18, 1999.

     'Person' is defined to mean any individual, corporation, limited liability
company, partnership, joint venture, association, joint-stock company, trust,
unincorporated organization or government or any agency or political subdivision
of a government.

                                       25

<PAGE>
     'Warrant Change of Control' is defined to mean the occurrence of any of the
following events:

          (a) any 'person' or 'group' (as these terms are used in Sections 13(d)
     and 14(d) of the Exchange Act), other than a Permitted Holder (as defined
     in the indenture governing our 14 1/2% senior secured notes due 2009), 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 a
     '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
     Voting Stock (as defined in the 14 1/2% senior secured notes indenture); or

          (b) 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 any of the above-described transactions in which our
     outstanding Voting Stock is converted into or exchanged for cash,
     securities or other property, other than any of these transactions where

             (i) our outstanding Voting Stock is not converted into or exchanged
        at all (except to the extent necessary to reflect a change in the
        jurisdiction of our incorporation) or is converted into or exchanged for
        Voting Stock (other than Redeemable Capital Stock (as defined in the
        14 1/2% senior secured notes indenture) of the surviving or transferee
        corporation and cash, securities and other property (other than Capital
        Stock (as defined in the 14 1/2% senior secured notes indenture) of the
        surviving or transferee corporation) in an amount that we could pay as a
        Restricted Payment (as defined in the 14 1/2% senior secured notes
        indenture) and

             (ii) immediately after the transaction no 'person' or 'group' (as
        these terms are used in Section 13(d) and 14(d) of the Exchange Act) is
        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 the total
        outstanding Voting Stock of the surviving or transferee corporation;

          (c) during any consecutive two-year period, individuals who at the
     beginning of the period constituted the our board of directors (together
     with any new directors whose election to our 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 the our board of directors then in office; or

          (d) we are liquidated or dissolved or a special resolution is passed
     by our shareholders approving the plan of liquidation or dissolution other
     than in a transaction which complies with the 14 1/2% senior secured notes
     indenture.

                         BOOK ENTRY; DELIVERY AND FORM

     We issued the certificates representing the warrants in fully registered
form.

     The warrants sold to 'qualified institutional buyers' ('QIBs') in reliance
on Rule 144A are represented by one or more permanent global warrants (the
'Global Warrants') in definitive, fully registered form which were registered in
the name of a nominee of the Depository Trust Company (the 'Depository') and
were deposited with the warrant agent as custodian for the Depository for credit
to the respective accounts of the purchasers (or to any other accounts as they
may have directed) at the Depository.

     Warrants sold to institutional 'accredited investors' as defined in Rule
501(a)(1), (2), (3) and (7) under the Securities Act were delivered in
certificated form only (the 'Certificated Warrants').

                                       26

<PAGE>
GLOBAL WARRANTS

     Upon issuance of a Global Warrant, the Depositary credits, on its internal
system, the respective amounts of the individual beneficial interests in the
Global Warrant to persons who have accounts with the Depositary
('Participants'). Ownership of beneficial interests in a Global Warrant will be
shown on, and the transfer of these beneficial interests will be effected only
through, records maintained by the Depositary or its nominee (with respect to
interests of Participants) and the records of Participants (with respect to
interests of persons other than Participants). Investors may hold their
interests in a Global Warrant directly through the Depositary if they are
Participants, or indirectly through organizations which are Participants.

     So long as the Depositary, or its nominee, is the registered owner or
holder of a Global Warrant, the Depositary or the nominee, as the case may be,
will be considered the sole owner and holder of the warrants represented by the
Global Warrant for all purposes under the warrant agreement and the warrants. No
beneficial owner of an interest in a Global Warrant will be able to transfer its
interest except in accordance with the Depositary's procedures, in addition to
those provided for under the warrant agreement.

     We will make payments and distributions in respect of the Global Warrants
to the Depositary or its nominee, as the case may be. We and the warrant agent
have no responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests in the Global
Warrants or for maintaining, supervising or reviewing any records relating to
those beneficial ownership interests.

     We expect that the Depositary or its nominee, upon receipt of any payment
of any dividends or other distributions in respect of a Global Warrant, will
credit Participants' accounts with payments in amounts proportionate to their
respective beneficial interests in the principal amount of the Global Note or
the number of warrants represented by the Global Warrant, as the case may be, as
shown on the records of the Depositary or its nominee.

     We also expect that payments by Participants to owners of beneficial
interests in the Global Warrant held through those Participants will be governed
by standing instructions and customary practice as is now the case with
securities held for the accounts of customers registered in the names of
nominees for the customers. Those payments will be the responsibility of the
Participants.

     Transfers between Participants in the Depositary will be effected in the
ordinary way through the Depositary's same-day funds system in accordance with
the Depositary's rules and will be settled in immediately available funds. If a
holder requires physical delivery of a certificated warrant for any reason,
including to sell warrants to persons in states which require physical delivery
of the warrants or to pledge the warrants, the holder must transfer its interest
in the Global Warrant in accordance with the normal procedures of the Depositary
and with the procedures set forth in the warrant agreement.

     The Depositary has advised us that the Depositary will take any action
permitted to be taken by a holder of warrants (including the presentation of
warrants for exchange as described below) only at the direction of one or more
Participants to whose account the Depositary interests in the applicable Global
Warrants are credited and only in respect of the portion of the aggregate number
of warrants as to which the Participant or Participants has or have given the
direction. However, if there is an Event of Default under our 14 1/2% senior
secured notes indenture, the Depositary will exchange the applicable Global
Warrant for certified warrants which it will distribute to its Participants.

     The Depositary has advised us as follows: The Depositary is a limited
purpose trust company organized under the laws of the State of New York, a
'banking organization' within the meaning of New York Banking Law, a member of
the Federal Reserve System, a 'clearing corporation' within the meaning of the
Uniform Commercial Code and a 'clearing agency' registered pursuant to the
provisions of Section 17A of the Exchange Act. The Depositary was created to
hold securities for its Participants and facilitate the clearance and settlement
of securities transactions between Participants through electronic book-entry
changes in accounts of its Participants, thereby

                                       27

<PAGE>
eliminating the need for physical movement of certificates. Participants include
securities brokers and dealers, banks, trust companies and clearing corporations
and certain other organizations. Indirect access to the DTC system is available
to others such as banks, brokers, dealers and trust companies that clear through
or maintain a custodial relationship with a Participant, either directly or
indirectly.

     Although the Depositary and its Participants have agreed to the foregoing
procedures in order to facilitate transfers of interests in the Global Warrants
among Participants, they are under no obligation to perform these procedures,
and these procedures may be discontinued at any time. We and the warrant agent
will have no responsibility for the performance by the Depositary or its
participants or indirect participants of their respective obligations under the
rules and procedures governing their operations.

CERTIFICATED WARRANTS

     Warrants originally purchased by or transferred to institutional
'accredited investors' which were not QIBs within the meaning of Rule 144A were
issued as Certificated Warrants. Upon transfer of Certificated Warrants to a
QIB, these Certificated Warrants may be transferred to the Global Warrant upon
delivery of appropriate certifications to the warrant agent.

     Owners of beneficial interests in the Global Warrants will be entitled to
receive Certificated Warrants if the Depositary is at any time unwilling or
unable to continue as, or ceases to be, a 'clearing agency' registered under
Section 17A of the Exchange Act, and we fail to appoint a successor to the
Depositary registered as a 'clearing agency' under Section 17A of the Exchange
Act within 90 days.

     Any Certificated Warrants issued in exchange for beneficial interests in
the Global Warrants will be registered in the name or names that the Depositary
shall instruct the warrant agent. It is expected that these instructions will be
based upon directions received by the Depositary from Participants with respect
to ownership of beneficial interests in the Global Warrants.

REPLACEMENT, EXCHANGE AND TRANSFERS

     If any warrant at any time is mutilated, defaced, destroyed, stolen or
lost, the warrant may be replaced at the cost of the applicant (including our
legal fees and those of the warrant agent) at the office of the warrant agent,
upon provision of evidence satisfactory to the warrant agent that the warrant
was destroyed, stolen or lost, together with any indemnity that we and the
warrant agent may require. Mutilated or defaced warrants must be surrendered
before replacements will be issued.

     Any beneficial interest in one of the Global Warrants that is transferred
to a person who takes delivery in the form of an interest in another Global
Warrant will, upon transfer, cease to be an interest in the first Global Warrant
and, accordingly, will after that time be subject to all transfer restrictions,
if any, and other procedures applicable to beneficial interests in the other
Global Warrant for as long as it remains an interest in that Global Warrant.

     Certificated Warrants may be exchanged or transferred in whole or in part
by surrendering the Certificated Warrants at the office of the warrant agent
with a written instrument of transfer as provided in the warrant agreement. In
addition, if the Certificated Warrants being exchanged or transferred contain a
restrictive legend, additional certifications to the effect that the exchange or
transfer is in compliance with the restrictions contained in the legend may be
required.

                 CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS

     The following discussion summarizes some of the United States federal
income tax consequences that may be relevant to holders of the warrants who are
United States Persons that hold their warrants as capital assets. The discussion
is intended only as a summary and does not purport to be a complete analysis or
listing of all potential tax considerations that may be relevant to holders of
warrants. The discussion does not include special rules that may apply to some

                                       28

<PAGE>
holders (including insurance companies, tax-exempt organizations, financial
institutions or broker-dealers whose functional currency is not the United
States dollar, persons holding the warrants as part of a 'straddle,' 'hedge,'
'constructive sale' or 'conversion transaction' and investors who are not United
States Persons) and does not address the tax consequences of the law of any
state, locality or foreign jurisdiction. The discussion is based upon currently
existing provisions of the Internal Revenue Code of 1986, existing and proposed
Treasury regulations under the Internal Revenue Code and current administrative
rulings and court decisions. Everything listed in the previous sentence may
change and any change could affect the continuing validity of this discussion.

     As used in this prospectus, 'United States Person' means a beneficial owner
of the warrants who or that (1) is a citizen or resident of the United States,
(2) is a corporation, partnership or other entity created or organized in or
under the laws of the United States or political subdivision of the United
States, (3) is an estate the income of which is subject to U.S. federal income
taxation regardless of its source, (4) is a trust if (A) a U.S. court is able to
exercise primary supervision over the administration of the trust and (B) one or
more U.S. fiduciaries have authority to control all substantial decisions of the
trust or (5) is otherwise subject to U.S. federal income tax on a net income
basis in respect of the warrants.

     THE FOLLOWING DISCUSSION IS FOR GENERAL INFORMATION ONLY. THE TAX TREATMENT
MAY VARY DEPENDING UPON A HOLDER'S PARTICULAR SITUATION. HOLDERS SHOULD CONSULT
THEIR OWN TAX ADVISORS AS TO THE PARTICULAR TAX CONSEQUENCES TO THEM OF
PURCHASING, HOLDING AND DISPOSING OF THE WARRANTS, INCLUDING THE APPLICABILITY
AND EFFECT OF ANY STATE, LOCAL OR FOREIGN TAX LAWS.

THE WARRANTS

     A holder's initial tax basis in a warrant will be equal to the holder's
purchase price for the warrant (or, in the case of an initial purchaser, an
amount equal to the portion of the issue price of the unit allocable to the
warrants). A holder generally will not recognize gain or loss upon a warrant's
exercise for cash (except to the extent cash is received instead of fractional
shares). Furthermore, a holder's tax basis in the common stock received upon the
exercise of a warrant will equal the exercise price of the warrants plus the
holder's tax basis in the warrant before its exercise. The holding period of
common stock received upon a warrant's exercise will begin with and include the
day the warrant was exercised.

     If a warrant is not exercised and is allowed to expire, the holder of the
warrant will recognize a loss equal to the holder's tax basis in the warrant.
The loss will be capital loss and will be long-term or short-term depending on
the holder's holding period for the warrant.

     If a holder of warrants acquires shares of our common stock through a
Cashless Exercise of warrants, the holder will recognize gain or loss equal to
the excess of the fair market value of the warrants deemed surrendered to pay
the exercise price over the holder's tax basis in the warrants. If a holder
exercises a warrant with a combination of the payment of cash and through a
Cashless Exercise, the transaction may be divided into the applicable number of
parts with each part treated as described above.

     Holders of warrants will recognize capital gain or loss on the sale or
taxable exchange of the warrants in an amount equal to the difference between
the amount of cash or property received and the holder's tax basis in the
warrants. The capital gain or loss will be long-term capital gain or loss if the
holder has held the warrants for longer than one year. Net capital gains of
individuals are subject to tax at lower rates than items of ordinary income. The
deductibility of capital losses is subject to limitations.

     The number of shares of common stock receivable upon the exercise of a
warrant is subject to adjustment under some circumstances. Under Section 305 of
the Internal Revenue Code and the Treasury Regulations under the Internal
Revenue Code, holders of the warrants will be treated as having received a
constructive distribution, resulting in ordinary income (subject to a possible

                                       29

<PAGE>
dividends-received deduction in the case of corporate shareholders) to the
extent of our current and/or accumulated earnings and profits, if, and to the
extent that, specific adjustments in the number of shares of our common stock
receivable upon the exercise of a warrant that may occur increase the
proportionate interest of a holder of a warrant in our fully diluted common
stock, whether or not the holders ever exercise the warrant. Generally, a
holder's tax basis in a warrant will be increased by the amount of any
constructive dividend.

BACKUP WITHHOLDING

     Under some circumstances, the failure of a holder of warrants to provide
sufficient information to establish that the holder is exempt from the backup
withholding provisions of the Internal Revenue Code will subject the holder to
backup withholding at a rate of 31 percent on the proceeds from a disposition of
the warrants. In general, backup withholding applies if a noncorporate holder
fails to furnish a correct taxpayer identification number, fails to report
dividend and interest income in full, or fails to certify that the holder has
provided a correct taxpayer identification number and that the holder is not
subject to withholding. An individual's taxpayer identification number is the
individual's Social Security number. Any amount withheld from a payment to a
holder under the backup withholding rules will be allowed as a credit against
the holder's U.S. federal income tax liability and may entitle the holder to a
refund, provided the required information is furnished to the Internal Revenue
Service.

     THE ABOVE SUMMARY DOES NOT DISCUSS ALL ASPECTS OF FEDERAL INCOME TAXATION
THAT MAY BE RELEVANT TO A PARTICULAR HOLDER OF WARRANTS IN LIGHT OF HIS OR HER
PARTICULAR CIRCUMSTANCES AND INCOME TAX SITUATION. EACH HOLDER OF WARRANTS
SHOULD CONSULT HIS OR HER TAX ADVISOR AS TO THE SPECIFIC TAX CONSEQUENCES TO THE
HOLDER OF THE OWNERSHIP AND DISPOSITION OF THE WARRANTS INCLUDING THE
APPLICATION AND EFFECT OF STATE, LOCAL, FOREIGN AND OTHER TAX LAWS, OR
SUBSEQUENT REVISIONS OF THESE TAX LAWS.

                                       30

<PAGE>
                              RECENT DEVELOPMENTS

THE UNIT OFFERING

     On May 18, 1999, we issued 200,000 units, each consisting of $1,000
principal amount of our 14 1/2% senior secured notes due 2009 and three
warrants. The 14 1/2% senior secured notes and the warrants traded together as a
unit until August 16, 1999.

     The senior secured notes will mature on May 15, 2009 and are secured by a
first priority perfected security interest in all the issued and outstanding
stock of Satellite CD Radio, Inc., our wholly owned subsidiary (the 'Pledged
Stock'), which pledge ranks equally with the pledge of the stock to secure our
obligations in respect of our 15% senior secured discount notes due 2009. In
addition, at the time we issued the senior secured notes, we applied
approximately $79.3 million of the net proceeds to purchase, and we pledged to
the trustee for the senior secured notes in escrow for the benefit of the
holders of these notes, a portfolio of U.S. government securities in an amount
sufficient to pay the first six payments of interest on these notes. We will pay
interest on our senior secured notes on May 15 and November 15 of each year,
commencing November 15, 1999, at a rate of 14 1/2% per annum until May 15, 2009.
The indenture governing the senior secured notes (the 'senior secured notes
indenture') does not provide for a sinking fund.

     Except as described below, the senior secured notes are not redeemable
before May 15, 2004. After that date, the senior secured notes are redeemable,
in whole or in part, at our option, at the redemption prices described in the
senior secured notes indenture, plus accrued interest to the applicable
redemption date. Specifically, if redeemed during the 12-month period beginning
on May 15 of the years shown below, the redemption price will be that amount,
expressed as a percentage of the principal amount of the senior secured notes,
shown below:

<TABLE>
<CAPTION>
                                                           REDEMPTION
YEAR                                                         PRICE
- ----                                                         -----
<S>                                                        <C>
2004.....................................................  107.250%
2005.....................................................  104.833%
2006.....................................................  102.417%
2007 and thereafter......................................  100.000%
</TABLE>

     In addition, at any time or from time to time before May 15, 2002, we are
entitled to redeem up to 35% of the principal amount of the senior secured notes
with the net proceeds of one or more offerings of our equity securities at a
redemption price (expressed as a percentage of principal amount on the
redemption date) of 114.50% plus accrued interest to the redemption date.

     If there is a Change of Control (as defined in the senior secured notes
indenture) or asset sales in specific circumstances, we will be required by the
terms of the senior secured notes indenture to make an offer to purchase the
outstanding senior secured notes at a purchase price equal to 101% of the
principal amount of the senior secured notes, plus accrued interest to the date
of purchase.

     The indebtedness evidenced by the senior secured notes ranks equally in
right of payment with all of our other existing and future unsubordinated
indebtedness and senior in right of payment to all of our existing and future
obligations expressly subordinated in right of payment to the senior secured
notes.

     The senior secured notes indenture contains a number of covenants
restricting our operations and the operations of our subsidiaries, including
those restricting the incurrence of indebtedness; the making of restricted
payments (in the form of the declaration or payment of some kinds of dividends
or distributions, the purchase, redemption or other acquisition of any of our
capital stock, the voluntary prepayment of equal or subordinated indebtedness
and the making of some kinds of investments, loans and advances); transactions
with affiliates; the issuance of liens; sale-leaseback transactions; the
transfer of assets; issuances and sales of capital stock of subsidiaries; the
issuance of guarantees by subsidiaries; dividend and other payment restrictions
affecting subsidiaries; and consolidation, merger or sale of substantially all
of our assets.

                                       31

<PAGE>
     The events of default under the senior secured notes indenture include
provisions that are typical of senior debt financings, including a
cross-acceleration to a default by CD Radio or any material subsidiary on any
indebtedness that has an aggregate principal amount in excess of $10 million.
Upon the occurrence of an event of default, the trustee or the holders of not
less than 25% in principal amount at maturity of the outstanding senior secured
notes may immediately accelerate the maturity of all the senior secured notes as
provided in the senior secured notes indenture.

FORD WARRANT

     On June 15, 1999, we issued a warrant to Ford which entitles Ford to
purchase 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.

     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 must also notify
Ford and offer to issue to 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 our 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.

                            SELLING WARRANT HOLDERS

     We originally issued and sold the warrants in a private placement to the
initial purchasers on May 18, 1999 as part of the units offering.

     We must supplement this prospectus with the names and beneficial ownership
positions of any selling warrant holders before those warrant holders may use
this prospectus in connection with an offering of the warrants. We will also
supplement the prospectus to disclose whether any warrant holder selling in
connection with the prospectus supplement has held a position or office with,
been employed by or otherwise has had a sustained relationship with us or any of
our affiliates during the three years before the date of the prospectus
supplement.

                              PLAN OF DISTRIBUTION

     We have registered the warrants for offer and sale by the selling warrant
holders so that the warrants will be freely tradeable. The warrants may be sold
from time to time to purchasers directly by the selling warrant holders.
Alternatively, the selling warrant holders may offer the

                                       32

<PAGE>
warrants to or through underwriters, broker-dealers or agents, who may receive
compensation in the form of underwriting discounts, concessions or commissions
from the selling warrant holders or the purchasers of the warrants. The selling
warrant holders and any underwriters, broker-dealers or agents that participate
in the distribution of the warrants may be deemed to be 'underwriters' within
the meaning of the Securities Act and any profit on the sale of warrants by them
and any discounts, commissions, concessions or other compensation received by
any of them may be deemed to be underwriting discounts or commissions under the
Securities Act. To the extent the selling warrant holders may be deemed to be
underwriters, they may be subject to statutory liabilities, including Sections
11, 12 and 17 of the Securities Act and Rule 10b-5 under the Exchange Act.

     The selling warrant holders may offer and sell, from time to time, some or
all of the warrants covered by this prospectus in one or more transactions at
fixed prices, at prevailing market prices at the time of sale, at varying prices
determined at the time of sale or at negotiated prices. These prices will be
determined by the selling warrant holders or by agreement between the selling
warrant holders and underwriters and dealers who may receive fees or commissions
in connection with the offering of the warrants. The selling warrant holders may
sell the warrants by a variety of methods, including the following (which may
involve block transactions):

      purchases by a broker or dealer as principal and resale by the broker or
      dealer for its account using this prospectus,

      ordinary brokerage transactions and transactions in which the broker
      solicits purchasers,

      an exchange distribution in accordance with the rules of the exchange,

      face-to-face transactions between sellers and purchasers without a
      broker-dealer, or

      through the writing of options.

     If required, at the time a particular offering of warrants is made, a
prospectus supplement will be distributed which will show the aggregate amount
of warrants being offered and the terms of the offering, including the name or
names of any underwriters, broker-dealers or agents, any discounts, commissions
and other terms constituting compensation from the selling warrant holders and
any discounts, commissions or concessions allowed or reallowed or paid to
broker-dealers.

     We do not intend to apply for listing of the warrants on any securities
exchange or for authorization for quotation of the warrants on any quotation
system.

     To the best of our knowledge, there are currently no plans, arrangements or
understandings between any selling warrant holders and any underwriter, broker,
dealer or agent regarding the sale of the warrants by the selling warrant
holders. We cannot assure you that any selling warrant holders will sell any or
all of the warrants it offers with this prospectus or that the selling warrant
holders will not transfer, devise or gift the warrants by other means not
described in this prospectus.

     The selling warrant holders and any other person participating in the
distribution will be subject to applicable provisions of the Exchange Act and
the rules and regulations under the Exchange Act, including Regulation M which
may limit the timing of purchases and sales of the warrants and warrant shares
by the selling warrant holders and those other persons. Furthermore, Regulation
M, under the Exchange Act may restrict the ability of any person engaged in the
distribution of the warrants and warrant shares to engage in market-making
activities with respect to the particular warrants and warrant shares being
distributed for a period of up to five business days before the commencement of
the distribution. All of the foregoing may affect the marketability of the
warrants and warrant shares and the ability of any person or entity to engage in
market-making activities with respect to the warrants and warrant shares.

     In accordance with the warrant agreement, we have agreed to indemnify the
selling warrant holders and the selling warrant holders have agreed to indemnify
us against specific liabilities, including some liabilities under the Securities
Act.

                                       33

<PAGE>
     We will pay substantially all of the expenses incidental to the
registration, offering and sale of the warrants to the public other than
commissions, fees and discounts of underwriters, brokers, dealers and agents.

     To comply with the securities laws of some jurisdictions, if applicable,
the warrants may be offered or sold in those jurisdiction only through
registered or licensed brokers or dealers. In addition, in some jurisdictions
the warrants may not be offered or sold unless they have been registered or
qualified for sale in those jurisdictions or an exemption from registration or
qualification is available.

                                 LEGAL MATTERS

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

                                    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, incorporated
by reference in this prospectus, have been so incorporated in reliance on the
report (which contains an explanatory paragraph relating to the Company's
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.

             WHERE YOU CAN OBTAIN ADDITIONAL AVAILABLE INFORMATION

     We file annual, quarterly and current reports, proxy statements and other
information with the Commission. You may read and copy the materials we file
with the Commission at the Commission's public reference room at 450 Fifth
Street, N.W., Washington, D.C. 20549, and at the Commission's regional offices
in Chicago, Illinois and New York, New York. Please call the Commission at
1-800-SEC-0330 for further information on the operation of the public reference
rooms. The Commission also maintains an Internet site that contains reports,
proxy and information statements and other information regarding issuers that
file with the Commission, including us. The site's address is
http://www.sec.gov. You can request copies of those documents, upon payment of a
duplicating fee, by writing to the Commission.

                           INCORPORATION BY REFERENCE

     The Commission 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. This prospectus
incorporates important business and financial information about us that is not
included in or delivered with this prospectus. The information that we file
later with the SEC will automatically update and supersede the information
included in and incorporated by reference in this prospectus. We incorporate by
reference the documents listed below and any future filings made with the
Commission under Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act until
we terminate the offering to which this prospectus relates.

          1. Our Annual Report on Form 10-K for the year ended December 31,
             1998, filed with the Commission on March 31, 1999, as amended by
             the amendment to it on Form 10-K/A filed with the Commission on
             April 30, 1999.

          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 filed on February 4, 1999, April 9,
             1999, April 16, 1999, May 3, 1999, May 25, 1999 and June 15, 1999.

                                       34

<PAGE>
     We have filed each of these documents with the Commission and they are
available from the Commission's Internet site and public reference rooms
described under 'Where You Can Obtain Additional Available Information' above.
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
                            New York, New York 10020
                                 (212) 584-5100

                                       35

<PAGE>
________________________________________________________________________________

                               [Logo of CD Radio]

                   600,000 WARRANTS TO PURCHASE COMMON STOCK
                         2,190,000 SHARES OF COMMON STOCK

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

No person has been authorized to give any information or to make any
representation other than those contained in this prospectus, and, if given
or made, any information or representations must not be relied upon as having
been authorized. This prospectus does not constitute an offer to sell or the
solicitation of an offer to buy any securities other than the securities to
which it relates or an offer to sell or the solicitation of an offer to buy
these securities in any circumstances in which this offer or solicitation is
unlawful. Neither the delivery of this prospectus nor any sale made under this
prospectus shall, under any circumstances, create any implication that there
has been no change in the affairs of CD Radio since the date of this
prospectus or that the information contained in this prospectus is correct as
of any time subsequent to its date.

                                        , 1999

________________________________________________________________________________

<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     Shown below are estimates of the approximate amount of the fees and
expenses (other than underwriting commissions and discounts) we have incurred in
connection with this offering.

<TABLE>
<CAPTION>
<S>                                                           <C>
Securities and Exchange Commission registration fee.........  $17,412
Accounting fees and expenses................................   10,000
Legal fees and expenses.....................................   25,000
Miscellaneous expenses......................................   15,000
                                                              -------
     Total..................................................  $67,412
                                                              -------
                                                              -------
</TABLE>

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 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.

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 of 1934 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.

                                      II-1

<PAGE>
     (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. In the event that 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) That: (1) 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 propectus filed by us in accordance with Rule 424(b)(1) or (4) or
497(h) under the Securities Act shall be deemed to be a part of this
registration statement as of the time it was declared effective; and (2) For the
purpose of determining any liability under the Securities Act, each
post-effective amendment that contains a form of prospectus shall be deemed to
be a new registration statement relating to the securities offered in the
registration statement, and the offering of those securities at that time shall
be deemed to be the initial bona fide offering of those securities.

     (d)(1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement:

          (i) To include any prospectus required by Section 10(a)(3) of the
     Securities Act of 1933;

          (ii) 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 hereof) which, individually or in the aggregate,
     represent a fundamental change in the information set forth in this
     registration statement; and

          (iii) 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 paragraphs (i) and (ii) above do not apply if the
registration statement is on Form S-3 or Form S-8 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 Securities Exchange Act of 1934 that are incorporated by
reference in the registration statement.

     (2) That, for the purpose of determining any liability under the Securities
Act of 1933, each such 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) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

                                      II-2

<PAGE>
                                   SIGNATURES

     In accordance with the requirements of the Securities Act, 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, who was duly
authorized, in the City of New York, State of New York, on August 24, 1999.

                                            CD RADIO INC.

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

                                      II-3

<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, 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 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.

     In accordance with the requirements of the Securities Act, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
                SIGNATURE                                  TITLE                         DATE
                ---------                                  -----                         ----
<S>                                         <C>                                   <C>
           /S/ DAVID MARGOLESE              Chairman and Chief Executive Officer   August 24, 1999
 .........................................    (Principal Executive and Financial
             DAVID MARGOLESE                  Officer)

           /S/ JOHN T. MCCLAIN              Vice President and Controller          August 24, 1999
 .........................................    (Principal Accounting Officer)
             JOHN T. MCCLAIN

          /S/ ROBERT D. BRISKMAN            Director                               August 24, 1999
 .........................................
            ROBERT D. BRISKMAN

         /S/ LAWRENCE F. GILBERTI           Director                               August 24, 1999
 .........................................
           LAWRENCE F. GILBERTI

          /S/ JOSEPH V. VITTORIA            Director                               August 24, 1999
 .........................................
            JOSEPH V. VITTORIA

          /S/ RALPH V. WHITWORTH            Director                               August 24, 1999
 .........................................
            RALPH V. WHITWORTH
</TABLE>

                                      II-4

<PAGE>
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>

EXHIBIT
- -------
<S>     <C>

 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)).
 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).
</TABLE>

                                      E-1

<PAGE>

<TABLE>
<CAPTION>

EXHIBIT
- -------
<S>     <C>
 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).
 5.1*  -- Opinion of Paul, Weiss, Rifkind, Wharton & Garrison
          regarding legality.
23.1*  -- Consent of PricewaterhouseCoopers LLP.
23.2*  -- Consents of Paul, Weiss, Rifkind, Wharton & Garrison
          (included in Exhibit 5.1).
23.3*  -- Consent of Wiley, Rein & Fielding.
24.1*  -- Power of Attorney (included on signature page).
</TABLE>

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

 * Filed with this registration statement.

                                      E-2





<PAGE>


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


                                 August 24, 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 (the "Commission")
today, as provided by the Securities Act of 1933, as amended (the "Act"), and
the rules and regulations under the Act, we have been requested to render our
opinion as to the legality of the securities being registered under the
Registration Statement. The Registration Statement relates to the registration
under the Act of (1) the Company's warrants (the "Warrants") to purchase shares
of the Company's common stock, par value $0.001 per




<PAGE>



CD Radio Inc.                                                                  2


share (the "Common Stock"), and (2) the shares (the "Warrant Shares") of the
Company's Common Stock issuable upon the conversion of the Warrants.

                  In connection with this opinion, we have examined originals,
conformed copies or photocopies, certified or otherwise identified to our
satisfaction, of the following documents:

                  1. the Registration Statement; and

                  2. the Warrant Agreement (the "Warrant Agreement") between the
         Company and United States Trust Company of New York, as warrant agent
         (the "Warrant Agent").

                  In addition, we have examined: (1) those corporate records of
the Company as we have considered appropriate, including copies of its Amended
and Restated Certificate of Incorporation and Amended and Restated By-laws, as
in effect on the date of this letter, and certified copies of resolutions of the
board of directors of the Company relating to the Warrant Agreement; and (2)
those other certificates, agreements and documents as we deemed relevant and
necessary as a basis for the opinions expressed below.

                  In our examination of the documents referred to above, we have
assumed, without independent investigation, (1) the genuineness of all
signatures, (2) the authenticity of all documents submitted to us as originals,
(3) the conformity to the original documents of all documents submitted to us as
certified, photostatic, reproduced or conformed copies of validly existing
agreements or other documents, (4) the




<PAGE>



CD Radio Inc.                                                                  3


authenticity of the latter documents, (5) that the statements regarding matters
of fact in the certificates, records, agreements, instruments and documents that
we examined are accurate and complete and (6) the legal capacity of all
individuals who have executed any of the documents which we examined.

                  In expressing the opinions set forth below, we have relied
upon the factual matters contained in the representations and warranties of the
Company made in the documents and upon certificates of public officials and
officers of the Company.

                  Based on the above, and subject to the stated assumptions,
exceptions and qualifications, we are of the opinion that:

                  1. The Warrant Agreement has been duly authorized, executed
and delivered by the Company and (assuming its due authorization, execution and
delivery by the Warrant Agent) constitutes a valid and binding agreement of the
Company, enforceable against the Company in accordance with its terms.

                  2. The Warrants were duly authorized and validly issued and
are fully paid and nonassessable.

                  3. The Warrant Shares are duly authorized and, when issued,
delivered and paid for in accordance with the Warrant Agreement and as described
in the Registration Statement, the Warrant Shares will be validly issued, fully
paid and nonassessable.

                  Our opinions are subject to the qualification that the
enforceability of the Warrant Agreement may be subject to (a) bankruptcy,
insolvency, fraudulent conveyance




<PAGE>



CD Radio Inc.                                                                  4


or transfer, reorganization, moratorium or other similar laws affecting
creditors' rights generally and (b) general principles of equity (regardless of
whether enforcement is considered in a proceeding in equity or at law).

                  Our opinions are limited to the laws of the State of New York,
the federal laws of the United States of America and the General Corporation Law
of the State of Delaware. Our opinions are rendered only with respect to the
laws, and the rules, regulations and orders under those laws, that are currently
in effect. Please be advised that no member of this firm is admitted to practice
in the State of Delaware.

                  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 opinion as an exhibit to the
Registration Statement. 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>


                       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 24, 1999







<PAGE>


                      [WILEY, REIN & FIELDING LETTERHEAD]


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

                                                                 August 25, 1999

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 25, 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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