Finally secured my leather interior for my A4 01 Avant, (half black leather & suede) picked it up last night, fitted it today. Fitting the door cards was the worst job as they leather ones had the wiring chopped on them, so had to swap over all the electrics from the old doors. However just like the passenger door card I took off last week which when refitted wouldn't operate the window, now the drivers door is completely dead. I've checked all the connections and all the fuses. I disconnected the battery for 10 minutes and now the windows won't even go up on the key fob! It's all the electrics on the door, so windows, mirrors, internal central locking and even the light on the door edge - nothing. The rear windows still operate as I haven't disconnected the main plug on them yet. How the hell could just unplugging the loom and reconnecting it disable everything on it? Only on an Audi I guess.