Hi all,just bought a 2001 Audi TT 3spoke leather wheel for my 2001 A2,the yellow harness connector fits but I have one wire that dosnt seem to go anywhere?its a brown one,the yellow harness plugs in ok,then the black one earths the steering wheel,but stumped where the brown wire goes,help would be appreciated my new tt wheel is part no 8N0 419 091 B 25D and I'm replacing a standard plastic 4 spoke