Had a GMC truck with XM after the trial I was happy with the service and gave them my card information.7 months ago I sold the truck,got a boom box from Walmart and asked to have my service switched.TO DATE I can't get them to make it work BUT on Jun 19/12 they charged me another $185.35 for dead air.I have called them every 2 weeks all they say is " I will put a order in and you will have service in 3 to 10 days. I hate to think what they will charge me if they ever get it to work. 304bfef