I've owned an 97 e36 M3 for three years and have been on the forum and have learned so much. just bought the mrs a '07 black on black 530 xi. looks like she'll be able to test the all wheel drive tomorrow with snow in the forecast. The only issue we're having is how to get XM into her car. She had it in her last one and loved it. My local stereo shop is talking 700 to 900 to get the needed hardware to intergrate. Any suggestions?