[artnsx]

Originally Posted by DeutschRennfahrer

I ordered the one without Navigation and it was definitely NOT the right part number.

This is the connection type you need for a 3.0i with a business CD radio:

http://www.ebay.com/itm/331363757201...%3AMEBIDX%3AIT

I have the business CD one in a 2003 Z4 and tried to install this one today and it does nothing. I don't think its any different than the ones that are about 6 dollars on ebay. I had no other connector where this one fit, but do have a cd changer in case that effected anything.