I have been getting this message the last few days. Antenna on the roof looks fine. I did install a subwoofer, but I used XM for almost a week after I finished that so I don't see how they are related. Any ideas?
I ws going to take the car into the dealer for the subwoofer rattle, but I can have them look at this. Do you think they will give me crap because I installed an amp and sub off the stock system? I really hate to remove it just to take it in. Any idea where the XM antenna runs in this car?