When I got my '06 Prius, it was something like $600 for satellite to be added. So I just went out to Circut City and got a plug and play satellite radio for $150. It now works fine, after I got a noise filter from Crutchfield.com that finally got rid of the hiss and whine noise the plug and play produced when plugged into the AUX plug. So if worse comes to worse, that is an alternative way to go, and you get the benefit of the satellite radio in your home as well.

Paula