After reading everything in the archives about stereo upgrades, it seems that many people chose the a/d/s system and installed it themselves in their 5 series. My new 530i will be here this week? per my dealer but it comes with the stock stereo - no dsp. I can't install a stereo myself, so does anyone have recommendations here in Florida (Sarasota/Tampa Bay area) for mobile high-end audio? My dealer is recommending Sound Advice because he says they've had experience with BMWs. That's encouraging, but I would like to know of anyone else's experiences and recommendations.