a4 to m6 question!!
my question is can i just swap harnesses with them both and be good and not have to wire in anything?? i havent seen anyone do this and im starting to wonder why??? someone chime in please!! we both have tunes and were both getting new tunes for our cars when the swaps are done just trying to save time and money! my harness is already out so if i can do that, thatd be saving time!


