Anyone know where I can get a schematic for a 2004 Q3? I'm having some electrical issues. I looked under the helm and the wiring is a mess from the previous owner. I replaced the cigarette lighter, and now my radio and nav/anchor lights don't work. I know I can trace them out but a schematics makes it so much easier. Takes the guess work out of it. I have checked all the fuses, and all are good.