XM Satellite Radio, the nation’s leading provider of satellite radio, today announced that it recently surpassed 3.1 million subscribers, the company’s year-end goal for 2004.

“We are very pleased to announce that XM recently exceeded the 3.1- million-subscriber mark, which was our goal for the end of year,” said Hugh Panero, President and CEO of XM Satellite Radio. “Holiday shoppers bought XM radios in record numbers, reinforcing XM’s significant market leadership position in satellite radio.”

XM offered holiday gift buyers a variety of new, next-generation products, including the award-winning Delphi XM2Go MyFi, the first portable, hand-held satellite radio, and the Delphi XM SKYFi2, the first plug-and-play satellite radio with pause and replay features. XM recently announced an 11-year deal to broadcast games for every Major League Baseball team beginning in spring 2005. XM also announced a long-term agreement with Toyota Motor Sales, USA to provide satellite-delivered data services for Toyota, Lexus, and Scion vehicles. In addition, Toyota will offer factory-installed XM radios in Toyota and Lexus vehicles in 2006, and expand the number of models offering XM as a dealer-installed option in 2005.

About XM Satellite Radio

XM Satellite Radio is America’s number one satellite radio service with more than 3.1 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City and Nashville at the Country Music Hall of Fame, XM’s 2004 lineup includes more than 130 digital channels of choice from coast to coast: 68 one-hundred-percent commercial-free music channels, featuring critically-acclaimed original programming, concerts, and diverse musical genres ranging from hip hop to opera, classical to country, bluegrass to blues; more than 40 channels of premier sports, talk, comedy, children’s and entertainment programming; and 21 channels of the most advanced traffic and weather information for major metropolitan areas nationwide. XM was named Best Radio Service at the 2004 Billboard Digital Entertainment Awards. Popular Science recently chose XM products for two prestigious “Best of What’s New 2004” Awards. As the Official Satellite Radio Network for Major League Baseball (MLB) and the Exclusive Satellite Radio Service for NASCAR, as well as the Official Satellite Radio Service for ACC, PAC-10 and Big-10 collegiate football and basketball, XM Satellite Radio is the industry leader in sports radio programming, offering thousands of live sporting events each year.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, Honda, Toyota, Nissan and Volkswagen, is available in more than 120 different vehicle models for 2005. XM also is available in Avis, National, and Alamo rental cars, and will soon be available on JetBlue and AirTran Airways. Consumers can experience XM over the Internet through XM Radio Online at http://listen.xmradio.com. 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, XM’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 3-15-04. Copies of the filing are available upon request from XM Radio’ s Investor Relations Department.