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NEWS RELEASE

XM IS NOW EXCLUSIVE SATELLITE RADIO HOME TO AIR AMERICA RADIO

7/11/2005

AIR AMERICA RADIO PERSONALITIES, INCLUDING TO BEGIN SPECIAL LIVE BROADCASTS FROM XM LATER THIS YEAR

Washington D.C., July 11, 2005 -- Beginning this week, XM Satellite Radio (NASDAQ: XMSR), 's leading satellite radio provider with more than 4.4 million subscribers, is now the exclusive satellite radio home of Air America Radio, the national progressive entertainment network home to Al Franken, and . In April, XM and Air America Radio announced a long-term partnership to make XM the exclusive satellite radio provider of Air America Radio programming.

As part of this new partnership, Air America Radio's on-air personalities, including Al Franken, will regularly take their progressive political talk on the road for special, live broadcasts in front of a studio audience from XM's Washington, D.C. studios. The first of these live XM studio shows will take place later this year.

"We are very grateful to XM for the belief they have shown in Air America Radio," said Air America Radio CEO Danny Goldberg. "Our association with XM Satellite Radio is a major step in bringing a truly national voice to tens of millions of Americans who are sick of relying on conservative or middle of the road media for their news and political opinion."

1 "Here at XM we pride ourselves on providing our listeners, whatever their political ideology, with a broad range of programming that reflects our nation's diverse social and political landscape," said XM Satellite Radio President and CEO Hugh Panero. "As the only satellite radio provider to offer Air America Radio programming, we are confident that XM is providing the best progressive talk available to our more than 4.4 million subscribers."

As part of the Air America Radio partnership, XM relaunched its liberal talk channel featuring a new channel name and expanded programming from its partner. Air America Radio (XM Channel 167), features an expanded line up of Air America programming, including the recently debuted "Springer on the Radio" hosted by Jerry Springer, "The Show," and "The Mike Malloy Show". These programs join XM's Air America Radio channel featuring progressive political talk. XM broadcasts encores and highlights from its weekday Air America Radio lineup on Saturdays and Sundays. In addition, XM airs shows hosted by Robert Kennedy Jr., Laura Flanders, and others. A complete schedule for XM's Air America Radio is available online at http://www.xmradio.com

*** About Air America Radio Air America Radio is the national progressive entertainment talk radio network. Air America Radio programs featuring Rachel Maddow, , Mark Riley, Al Franken, Katherine Lanpher, Jerry Springer, Randi Rhodes, , Janeane Garofalo, , Gia Garel, Mike Malloy, Laura Flanders, Steve Earle, Robert Kennedy Jr., , , Kyle Jason, Marty Kaplan, Angie Coiro, and Betsy Rosenberg are broadcast in top U.S. markets. Since the network's launch on March 31, 2004, listeners have had access to Air America Radio's programming via live Internet streaming on www.airamericaradio.com, XM Satellite Radio and currently are on 64 markets across the country.

About XM Satellite Radio XM is America's number one satellite radio service with more than 4.4 million subscribers. Broadcasting live daily from studios in Washington, DC, City and Nashville at the Country Music Hall of Fame, XM's 2005 lineup includes more than 150 digital channels of choice from coast to coast: the most commercial-free music channels, plus premier sports, talk, comedy, children's and entertainment programming; and 21 channels of the most advanced traffic and weather information. XM was named Best Radio Service at the 2004 Billboard Digital

2 Entertainment Awards.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, Honda, Toyota, Hyundai, Nissan and Volkswagen/Audi, is available in more than 120 different vehicle models for 2005. XM's industry-leading products are available at consumer electronics retailers nationwide. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this press release include demand for XM Satellite Radio's service, the Company's dependence on technology and third party vendors, its potential need for additional financing, as well as other risks described in XM Satellite Radio Holdings Inc.'s Form 10-K filed with the Securities and Exchange Commission on 3-4-05. Copies of the filing are available upon request from XM Radio's Investor Relations Department.

XM Contact: Anne-Taylor Griffith Phone: 202-380-4151 [email protected]

Air America Radio Contact: Jaime Horn Phone: 212-871-8134 [email protected]

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