Hi all , Basically I've got an aftermarket single din cd player in my Audi A3 2004 , I've decided to retro fit the new dash from a newer model and picked up a Audi Consort double din with the cage and all the other bits . From what i've researched the dash will have to move down to make space for the double din etc I was wondering what Wiring harness i need to swap over to the double din as it won't fit to existing one . I've tried the climate control unit a and all that works, what other bits will i need Thanks