Cadillac CTS-V - Radio problems

I have a 05 and the xm part of my radio is messing up. Yesterday the stations just showed 00 but after i killed the car and cranked it again it showed the proper station numbers. Then today it doesn't even have xm. It goes straight from fm to fm to am then back to fm. Anybody have this problem? Any way to fix?

mine does that as well. I noticed that when I put the new 2009 Nav disc in the XM went out. I put the old nav disc that came with the car in and the XM came back on....it is really weird. So for the past 6 months I have just kept the old nav disc in and have had free XM. I am kind of curious as to why mine will randomly go out like you are talking about.

I'm still using the original nav disc. I don't mean i lost subscription it won't even go to xm

I'm still using the original nav disc. I don't mean i lost subscription it won't even go to xm

same thing with mine...mine wont go to XM with the new disc and even with the old nav disc still disappears occasionally like you described

mine does that to. Started after i got it tuned. sometimes i have to take the battery cable off foor a sec to get it to show xm.