2006 gmc envoy_denali
I am just having all sorts of problems here all of a sudden, and of course I'm at 55000 miles so I'm out of warranty. I started having problems with my 2006 Envoy Denali's OEM Nav Unit XM radio the other day. It would tune into stations momentarily, quit reception, then after a few seconds display "XM Error" on the screen and jump to FM. It does this everytime I try to tune to one of the XM bands. Anyone know what's up or where I might try troubleshooting?