From iPod your BMW:
Connect with music like never before behind the wheel of your BMW 3 Series, and X3 and X5 SAV, Z4 Roadster or MINI. With the installation of an integrated adapter developed by Apple and BMW, you can now control your iPod or iPod mini through the existing audio system and multi-function steering wheel. Which means no loss of power. No loss of sound quality. No loss of control....Interesting. I bet convenient out of the box integration between iPods (and similar devices) and most makes of new vehicles isn't too far off.