Originally Posted by anerbe
If you car requires it, then yes - the Y cable will have your iPhone show up in entertainment as an iPod (similar setup to a CD changer). There will be menu options to sort/play music by Playlist, Genre, Artist, etc... on your iDrive.
Found that out...the sales guy didn't think so, which is why I ask.
Dealer gave me the cable, and I'm all set! Thanks for the help!