In the years I’ve subscribed to Sirius, paying in advance for service was always the standard. In 2008 I started having difficulty with my signal. It would cut in and out just a bit at first, then over several months it happened constantly. I made multiple calls to Sirius who would generate a “signal boost” in my zip code area. This would help somewhat, but eventually it would get so bad again I just shut my radio off. Even after spending $90.00 on a Sirius signal booster from Circuit City, the improvement was minimal at... read full review »