On-Star trouble

[jmsspratlin]

I have the whole set-up, however I never activated it. I recently decided to go ahead with activation due to the possibility of taking the tire off the back. That way someone can come to change the freaking tire for me (due to my late condition of laziness) Anyway, the thing will not connect. It will dial and cont to do so until it finally just goes off. I called On-Star and the lady explained that it was the truck and that a signal could not be established, therefore leading her to believe that something is either unplugged, or that the hardware is bad. Has anyone had this problem? Was it an easy fix if so? Reason I ask, is because the nearest Hummer dealer is 2.5 hours away! I was also thinking that maybe any GMC dealer could possibly fix this problem. Would I be wrong in that assumption/ Thanks in advance.....Jamie