My interior backlighting is not working after hooking up my AOB switches. When I was testing My wires I did here a pop while testing with the multimeter. I did not touch the grey dimmer wire as instructed not to. My radio back lighting and ac backlighting is out. My instrument cluster lights up though. It seems to be all the back lighting below the dash. I can't figure out what fuse it could be. I'm hoping its only a fuse.