[tvandyck7]

I have an indash DVD/multimedia/nav system that will play music and phone over bluetooth. It is as simple as initailly pairing them and pressing play. After that, it pairs automatically when I jump into my truck. You can buy inexpensive bluetooth devices that transmit radio signals to play songs from your phone, but you still have to control what is being played manually on your phone. It all depends on how fancy you want to get.