2000 a6 have power to the 5amp headlight fuse. no power to the highbeam or low beam fuses. will get power to the lowbeam fuse and it will light the lights when I pull back on the dimmer switch. have no power to the fan, blinkers or wipers fuse. made jumper to the wiper fuse and all began to work except headlights. swapped out relay( fan ,wiper, blinker) but that did not help. could the Ignition switch be going bad? HELP