Becasue I lost it!
I was driving down the road today listem to XM and than #$it! ZERO XM!
So I switch through the bands AM, FM1,FM2, CD, and than no XM option anymore. WTF?
So I get home and call XM to make sure my account is paid for, Yep, sure is: good through next June. Their tech. tells me XM info has been lost with the radio and will need to be "re-programed." She said the radio lost the information some how but could not explain as to why.
So I called the HUMMER Dealer Service dept. They said they will have to plug the tech II in to upload new info. They were also not sure why it was lost.
Anyone else have this on an 06 Nav Radio.