In 2009, I bought a new car and paid extra to have an XM radio installed, and paid for a 1-year subscription. About a month later, I rented a car for a weekend trip. The rental car had an XM radio- but it wasn't activated. I thought- well I'm an XM subscriber, so I can just pay to have this activated temporarily. It was a long drive through nowhere, and I was so far happy with my XM experience so I didn't mind paying a little bit to have satellite radio to help pass the time. The sales rep on the phone informed me that the... read full review »