Bought 2 heated mirrors off the bay. Fitted them, and, of course, plugged the wires on to the connectors. Neither of them work. I have VCDS - in Module 46 (Convenience, or Comfort Module), basic settings, groups 012 and 013 are for the driver's and passenger's mirrors. Looking at 012-4 and 013-4, both say: Heated Mirror: OFF. How can I change these settings to say : ON? Or are the mirrors faulty? They aren't OEM ones. Any help - greatly appreciated.