02 1.9TDi SE quattro Evening. after the recent cold weather i've realised my mirrors arent heated - not impressed. so, i searched the forum wondering if anyone had upgraded - I find messages that say the wiring is there and it works with the heated rear window, so i pop the passenger mirror off, and theres the wiring! brilliant! so while i'm considering a trip to wakefield audi to buy the mirrors i decide to plug a meter into the wires to check the voltage... so heres my problem, no power! i press the heated rear window button but no voltage. aaargh! i check the wiring diagrams in the haynes book and the wires seems to go into a door control module. i actually thought this was gonna be an easy upgrade but i dunno where to go from here. i cant find fuse slots that might be missing fuses - the heated window is definitely working anyone any ideas to point me in the right direction? help?