Help. Im trying to install a Connects2 CTVADX001 aux in adapter into a new 07 A3 "special edition" sportback with double din chorus cd headunit. I have what i think is the quadlock system on the rear of the HU. The connections on the Connects2 box are standard ISO block connectors. Ive found an adaptor on ebay Autoleads number PC2 75 4. This APPEARS to be what i need to patch the two together. Can someone confirm this? Audi are utterly clueless in this regard. BTW. Any help would be greatly appreciated.