XM Radio Problem

I have a problem with the radio in the 2005 GP...the wife has been using the XM portion of the Band selection of the radio for her Ipod playback...worked for about a year fine. Now, using the Band selector, the XM selection isn't an option....it goes from AM, to FM1, to FM2, then back to AM....no XM option...She contacted XM and, understandably, they said its the radio.
Any idea what's going on?
Thanks,
Tom

Sounds like a bad XM tuner. It's either in the trunk, or in the rear deck. But then again it could be integrated into the head unit.

Check the fuses for the xm tuner.