For those of you who have loads of music on an MP3 player and want to play the music in your car, it is possible. You can connect the player to the aux. input, but you will not have full control over what's playing via the i-drive/nav system. And, you won't be able to use the power input to recharge the player. I used a Radio Shack stereo audio cable (part no. 42-2497) and am able to play all music on my MP3 player. Good quality. If you have a newer IPOD, iof course it's much simpler. Guess I will have to go the IPOD route one of these days.
