My wife's car came with XM satellite radio from the factory. It's a 2003 Grand Am GT SC/T. We decided to order the service and absolutely love it. I have an XM ready Pioneer DEH-P4400 in the GN and today added a pioneer xm tuner and of course an antenna on the trunk up by the rear window. Sounds great ! I highly recommend it for anyone considering it. ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)