I just bought a new car with a Sirius receiver. I was shocked at the poor quality (like a 64kbps MP3 file or worse in the case of the spoken word channels) on the car radio. I even compared the same song as it was playing on the "Classic Rewind" channel. It sounded metallic in the car but fine on my TV. I presumed that E* received the channels directly off the same satellites that Sirius uses but the difference in sound quality is striking. I know that some have complained about the lack of quality off E* however the car radio makes E* sound excellent by comparison.