Originally Posted by rmnoonan
The y cable is the standard connection that comes with the car. If you have BMW Assist then you can use the iPod/iPhone white cable which is the better option. Y cable is not a digital connection for your music. I hear the sound is still great with the y cable though.
I was wondering why the white cable would be the better option. As I understand it, with the Y-cable, you have the iPod do the playback. With the white cable, files are being transfered to the car and then the car does the decoding and playback (hence DRM files can't be played). Wouldn't the iPod own DAC be superior?