I have XM in one of my vehicles, just playing it through the tape deck and sometimes the FM transmitter. Sound was never stellar, but really not bad at all.
I just bought a new car that came with built-in Sirius. Holy Cow! EVERYTHING on there sounds like a heavily compressed mp3. I'm not an audio snob, but particularly if there is a lot of cymbal or other high "splashy" sounds, it actually gives me a headache to listen to it for long. My wife even commented, which is usually how I know something in the A.V world must REALLY be bad!
I guess it could be the unit, but CDs and iPods running through the system sound great, very clear and robust. It's just the Sirius that is stinkin' up the joint. And the issue is definitely compression. Any chance that will change once they merge? I think I would like the programming they offer, but the sound quality....!
I just bought a new car that came with built-in Sirius. Holy Cow! EVERYTHING on there sounds like a heavily compressed mp3. I'm not an audio snob, but particularly if there is a lot of cymbal or other high "splashy" sounds, it actually gives me a headache to listen to it for long. My wife even commented, which is usually how I know something in the A.V world must REALLY be bad!

I guess it could be the unit, but CDs and iPods running through the system sound great, very clear and robust. It's just the Sirius that is stinkin' up the joint. And the issue is definitely compression. Any chance that will change once they merge? I think I would like the programming they offer, but the sound quality....!