That's interesting, How do I tell if my MMI system is a full one or not. It has a single CD player in glove box, but does have buttons for CD/TV, Nav, radio. but when you choose Nav, it comes up on the screen, " nav not connected" or similar. mines a 54 plate A6 Quattro Sline, and the screen is MMI system and the writing is all in red. I also wish to fit an Ipod connection. Thanks