Exhibit 99.1



                          SUMMARY TERM SHEET/COMMITMENT


ISSUER:                 CD Radio Inc. (the "Company")

ISSUE:                  Convertible Preferred Stock (the "Preferred")

PRINCIPAL AMOUNT:       Up to a Maximum of $150 million

MATURITY:               10 years

CONVERTIBLE:            Any time after closing, at a price of $21.00; provided,
                        however, that the conversion price will reset to market
                        price if on the 4th anniversary of the issuance of the
                        Preferred the market price of the common stock of the
                        Company (as so defined) is below $21.00; provided
                        further that in no event shall the reset be below
                        $10.00. (For the purpose hereof, the term "market price"
                        shall mean the average of the closing prices of the
                        Company's common stock for the 20 trading days ending 5
                        days prior to the 4th anniversary.)

OPTIONAL                REDEMPTION: Non-call for first three years. During years
                        four and five, callable at par plus accrued but unpaid
                        dividends if the closing market price of the Company's
                        Common Stock exceeds $31 1/2 per share for 20 trading
                        days out of any 30 consecutive trading days. Thereafter,
                        callable at anytime at par plus accrued but unpaid
                        dividends.

DIVIDEND RATE:          5% PIK or cash, at the Company's option.

RANKING:                The Preferred will be junior to all debt (bank debt, 
                        high-yield offering), but senior to the common equity. 
                        (The foregoing ranking is not intended to constitute a 
                        restriction on other financings by the Company.)

COVENANTS:              None

PLACEMENT FEE:          3% of the gross proceeds payable to Libra Investments,
                        Inc. upon closing; provided, that such fee shall be













                        1.875% of gross proceeds with respect to the first
                        $50,000,000 of Preferred purchased by the Everest Funds.

COMMITMENT:             Everest Capital International, Ltd., Everest Capital
                        Fund L.P. and other entities managed by Everest Capital
                        Limited (collectively the "Everest Funds") and The
                        Ravich Revocable Trust of 1989 ("Ravich" together with
                        the Everest Funds, the "Buyer") will commit to buy $50
                        million and $2 million (the committed amounts),
                        respectively, of the Preferred (by either exchanging 
                        shares of the Company's 5% Delayed Convertible Preferred
                        Stock (the "Delayed Preferred Stock") having an
                        Exchange Value (see below) equal to the foregoing
                        amount or by paying in cash) and the Company will commit
                        to sell such amounts simultaneous with the closing of
                        any financing (not including this financing up to an
                        amount equal to the Liquidation Preference of all
                        outstanding Delayed Preferred Stock divided by 72.125%)
                        yielding "new money" gross proceeds equal to or in
                        excess of $150 million completed on or prior to November
                        15, 1997 (the "New Financing" and such date shall be
                        referred to as the "New Financing Date"); provided, that
                        it shall be a condition of the Buyers' obligation that
                        (a) all Delayed Preferred Stock is redeemed or converted
                        on or prior to the New Financing Date, and (b) a
                        mutually agreeable (it being understood that an expert
                        chosen by any of Morgan, Stanley & Co., Donaldson
                        Lufkind & Jenrette, Lehman Brothers, Inc., Merrill,
                        Lynch, Pierce, Fenner & Smith or Bear Stearns & Co.
                        shall be deemed to be mutually agreeable) third party
                        expert verify to Buyers that the system (e.g. only two
                        satellites and limited terrestrial repeaters) of
                        delivering digital audio to automobiles, as described in
                        its business plan (including, but not limited to, being
                        able to reach at least 90% of the United States
                        population), is technically feasible; and provided
                        further, that, if in connection with the New Financing,
                        any common stock, securities convertible or exchangeable
                        into common stock or warrants (each an "Equity
                        Equivalent") is sold or given in conjunction with such
                        New Financing where the lowest of the (i) sale price,
                        (ii) conversion price, (iii) "market price" (as defined
                        above) of the common stock measured over the 20 trading
                        days prior to the date of such sale or













                        (iv) exercise price (the "Equity Equivalent Price") is
                        less than $21.00 per share of common stock, then the
                        conversion price of the Preferred shall be reset (but
                        never above $21.00) to the Equity Equivalent Price; and
                        provided further that in lieu of purchasing the
                        Preferred the Buyers, at their option, may purchase a
                        like amount of the Equity Equivalent.

EVEREST                 OPTION: The Everest Funds shall have the option to
                        increase its commitment (on the same terms as herein
                        provided) to $98 million provided it gives written
                        notice to the Company on or before July 3, 1997 (the
                        "Everest Option"). The Everest Option shall not be
                        transferable.

LISTING:                The Company undertakes to list the Preferred on the same
                        exchange on which the Company's common stock trades.

COMMITMENT FEE:         Upon execution of this Commitment Term Sheet (or as
                        soon thereafter as practical), the Company will issue to
                        the Everest Funds and Ravich 1,560,000 (or, if the
                        Everest Option is exercised 1,560,000 times the total
                        amount committed by the Everest Funds and Ravich divided
                        by $52 million) eight-year warrants to purchase common
                        stock at a price of $50.00 per share, allocable PRO RATA
                        between the Everest Funds and Ravich based on amounts
                        purchased. The Warrants shall not be exercisable until
                        the date one year after execution of this Commitment
                        Term Sheet, at which date they shall become exercisable
                        for the remainder of their term. The Warrants shall
                        contain customary terms and conditions, and shall be
                        callable by the Company after three years at a price of
                        $0.01 per warrant if the closing market price of the
                        Company's Common Stock exceeds $75.00 per share for at
                        least 20 trading days in any 30 consecutive trading day
                        period after three years from the date of issuance. In
                        addition to the Warrants, the Company shall pay the
                        Everest Funds a cash commitment fee equal to $562,500,
                        payable upon closing of Everest's purchase of at least
                        $50,000,000 of Preferred (whether through purchase for
                        cash or by exchanging Delayed Preferred Stock).















STANDSTILL AGREEMENT OF
EVEREST FUNDS:          The following limitations (the "Standstill Agreement")
                        apply to the Everest Funds and their affiliates, and to
                        certain transferees. Until the date one year after
                        execution of this Commitment Term Sheet, the Everest
                        Funds and their affiliates (i) shall not acquire common
                        stock, including by means of conversion of the Preferred
                        or Delayed Preferred Stock or exercise of any other
                        right, if, upon such acquisition, the Everest Funds and
                        their affiliates will have or share, directly or
                        indirectly, voting or investment power over ten percent
                        or more of the outstanding class of common stock (for
                        purposes of this clause (i), a right to acquire upon
                        exercise or conversion will not be deemed to confer
                        voting or investment power over the underlying security
                        in the absence of an exercise or conversion), and (ii)
                        shall not sell or otherwise dispose of Warrants,
                        Preferred or Delayed Preferred Stock to any one
                        purchaser if, following such sale or disposition, the
                        purchaser and its affiliates would be beneficial owners
                        of ten percent or more of the outstanding class of
                        stock, except for a sale or disposition of Warrants,
                        Preferred and/or Delayed Preferred Stock to a purchaser
                        who, for itself and its affiliates, agrees to be bound
                        by the limitations set forth in this Standstill
                        Agreement. Except as provided otherwise in the
                        parenthetical language in clause (i) above, terms and
                        concepts used in this Standstill Agreement shall have
                        the meanings set forth in Section 13(d) of the
                        Securities Act of 1934 and the rules and regulations
                        thereunder.

EXCHANGE VALUE:         "Exchange Value" shall be defined as 1.3865 times the
                        Liquidation Preference of the Delayed Preferred Stock
                        being exchanged (including accrued but unpaid dividends
                        and fees, if any).

EXCHANGE OFFER/
REGISTRATION RIGHTS:    Within 180 days after the New Financing Date, the
                        Company shall use its best efforts to file with the SEC,
                        if permitted by then applicable interpretations of the
                        SEC staff, a registration statement with respect to an
                        offer to exchange the Preferred (the "Exchange Offer")
                        for preferred stock of the Company with identical terms
                        to the Preferred (other than restrictions on transfer)
                        and convertible into registered shares of Common Stock.
                        The













                        Company shall also use its best efforts to cause such
                        registration statement to become effective, and to
                        obtain all other necessary approvals, including the FCC
                        (if applicable), within 90 days of such filing with the
                        SEC. The Everest Funds and Ravich understand that such
                        SEC Staff interpretations currently would not permit the
                        Company to undertake the Exchange Offer as contemplated
                        above. In the event applicable interpretations of the
                        staff of the SEC do not permit the Company to effect the
                        Exchange Offer, or if for any other reason the Exchange
                        Offer is not consummated, the Company will use its best
                        efforts to a) within 180 days after the New Financing
                        Date, file a shelf registration statement with respect
                        to resales of the Preferred and the shares issuable upon
                        conversion of the Preferred, and (b) within 90 days of
                        such filing with the SEC, cause such registration to
                        become effective and to obtain all other necessary
                        approvals, including the FCC (if applicable). The
                        parties shall enter into a registration rights agreement
                        with respect to the foregoing containing customary
                        terms, conditions and indemnities, including without
                        limitation provision for reasonable cash penalties for
                        failure to timely comply with the foregoing obligations.

WARRANT
REGISTRATION RIGHTS:    Within 180 days after the New Financing Date, the
                        Company shall use its best efforts to register for
                        resale the shares of common stock issuable upon exercise
                        of the Warrants with the SEC pursuant to a shelf
                        registration on Form S-3 (if available) or Form S-1 (if
                        Form S-3 is not available) and to obtain all other
                        necessary approvals, including the FCC (if applicable),
                        for the resale of such shares. The parties shall enter
                        into a registration rights agreement with respect to
                        such registration containing customary terms, conditions
                        and indemnities, including without limitation provision
                        for reasonable cash penalties for failure to timely
                        register the shares.

CONDITIONAL OPTION
TO EXCHANGE FOR
CONVERTIBLE             DEBT: If at any time within six months after the New
                        Financing Date, the Company raises not less than $75
                        million in gross proceeds from the sale of common stock
                        (and/or convertible preferred stock provided that such
                        convertible













                        preferred stock shall not have a reset and provided
                        further that in either instance no additional equity
                        securities are granted along with such common stock or
                        convertible preferred stock) (the "Equity Sale"), the
                        Company shall have the option, exercisable not earlier
                        than 187 days nor later than 200 days after the New
                        Financing Date, to require the conversion of all or any
                        portion of the Preferred into convertible subordinated
                        debt (the "Convertible Debt".) The Convertible Debt
                        shall have the same terms and conditions as the
                        Preferred (e.g. 10 year term (commencing from the New
                        Financing Date), same conversion privileges, etc.)
                        except that (i) interest must either be paid in cash at
                        8% or PIKed at 10% (with such PIK option being available
                        for only the first 3 years), (ii) the conversion price
                        shall reset (but never above $21.00) to the price at
                        which the stock is sold in the Equity Sale (or, if the
                        sale is of convertible preferred stock, the conversion
                        price shall reset (but never above $21.00) to the
                        "market price" (as defined above) of the common stock
                        measured over the 20 trading days prior to the date of
                        such sale), and (iii) the conversion price shall not be
                        reset to market on the 4th anniversary.

STOCK SPLITS/
COMBINATIONS:           All share amounts and share prices set forth herein
                        shall be appropriately adjusted for any stock splits,
                        stock dividends, stock combinations and the like
                        occurring after the date hereof.

CONDITIONS:             The Company's obligations hereunder are subject to the
                        following conditions:

                              a)   shareholder approval of the issuance of the
                                   Preferred, if required to list the Preferred,
                                   or to maintain the listing of the Common,
                                   on the Nasdaq Small Cap Market, and

                              b)   FCC approval, if required to issue the
                                   Preferred or Common Stock upon
                                   conversion of Preferred or exercise of
                                   Warrants

                        ; provided that (i) the Company shall use its best
                        efforts to cause the foregoing conditions to be
                        fulfilled as promptly













                        as reasonably practicable, and (ii) David Margolese and
                        Darlene Friedland agree to cause all shares of Company
                        stock held by them or over which they exercise voting
                        control to approve the matter described in subpagraph
                        (a) above and to require any transferees of their stock
                        to so vote such stock, it being understood that
                        Friedland and Margolese, taken together, currently hold
                        approximately 43% of the outstanding common stock of the
                        Company.

AMENDMENT TO
DELAYED PREFERRED
STOCK                   AGREEMENT: Each of the Everest Funds and Ravich will
                        cause all shares of Delayed Preferred Stock held by them
                        or over which they exercise voting power to consent to
                        the following amendments to the terms of the Delayed
                        Preferred Stock if so requested by the Company:

                              a)   amend the definition of Qualifying Offering
                                   in Section 3(e)(i) of the Certificate of
                                   Designations of the Delayed Preferred
                                   Stock to include the offering of any
                                   securities of the Company in an offering
                                   which is either registered under the
                                   Securities Act of 1933 or exempt from
                                   registration thereunder for net proceeds of
                                   not less than $100 million; and

                              b)   change the date "October 15, 1997" in
                                   such Section 3(e)(i) to "November 15,
                                   1997."

BINDING COMMITMENT:     The obligations of the signatories hereto shall not be
                        subject to any conditions or exceptions other than those
                        expressly set forth herein. As soon as practicable after
                        the signing of this Commitment Term Sheet, the number of
                        shares of Delayed Preferred Stock to be exchanged by the
                        Everest Funds and Ravich shall be deposited with an
                        escrow agent acceptable to the parties pursuant to a
                        stock exchange agreement reflecting the terms and
                        conditions of this Commitment Term Sheet and other
                        customary terms and conditions, or, in the absence of
                        such an agreement, this Commitment Term Sheet shall
                        constitute a binding agreement for the transactions
                        contemplated hereby. This Commitment Term Sheet may be
                        executed in any number













                        of counterparts, all of which taken together constitute
                        a single agreement.




Date:  June 15, 1997                Everest Capital International, Ltd.
                                    Everest Capital Fund, L.P.


                                    By: /S/ M. DIMITRIJEVIC
                                       ----------------------------
                                         Marko Dimitrijevic



                                    Ravich Revocable Trust of 1989


                                    By: /S/ JESS M. RAVICH
                                       ----------------------------
                                         Jess M. Ravich, Trustee


                                    CD Radio Inc


                                    By: /S/ DAVID MARGOLESE
                                       ----------------------------
                                         David Margolese, Chairman
                                          and Chief Executive Officer













                            AGREEMENT OF STOCKHOLDERS


            The undersigned stockholders of CD Radio Inc. hereby agree to be
bound by the provisions set forth in clause (ii) of the proviso in the section
captioned "Conditions" in the above Summary Term Sheet.



 /S/ DAVID MARGOLESE
- ------------------------
David Margolese





 /S/ DARLENE FRIEDLAND
- ------------------------
Darlene Friedland