I have two cars each with paid three year XM Radio service. The service on one of the cars expired and I had no intention to renew. However, my Visa statement showed a charge from XM Radio for approximately $460. This was a surprise as I had not authorized a renewal. Twice I contacted XM Radio and after a lengthy wait both times I was connected to customer service. When I explained that I wanted to cancel my service I was literally argued with and when I insisted that I wanted to cancel I was disconnected, both times. My impression is this borderes on outright fraud and I would recommend that anyone considering XM Radio be aware of their practices. read full review »