Hi! I just called our local Mercedes Dealer and they said the Media Interface Plus is built for models past 2009.

The most important functionality I need:

1. charge iPhone while in the car
2. answer calls over Bluetooth - pairing should be automatic when getting in the car
3. listen to playlists over car speakers.

it's a plus to control the iPod from the command system, the steering wheel, and/or through voice-activation.

listening to Internet radio like last.fm would be great but not necessary.

does any one have a 3rd party solution to recommend?