So it all started when SiriusXM sent me an offer in the mail for 6 months of service for $25... I figured that I could at least try the service... Well, I purchased the service plan, entered the radio ID, etc. I go out to my truck 20 minutes later to see if everything is in working order, "NO XM SIGNAL" displayed out across the Nav... Story of my life, lol. I'm not sure what it could be or even where to start looking... I dropped the glovebox & checked the XM unit itself, looks to be in functioning order, properly connected, etc... Where should I go from here? I read a post on another forum from a guy with a nnbs Suburban, who was having the same problem, his ended up being a disconnected wire or something like that. My question is, where are these connections, and how can I get to them to see if there's a problem? I'm really hoping that this is an easily resolved issue...