92 lude gauge lights NOT WORKING

ok. My cluster lights don't work. Today, when i was messing with my deck, i tapped a wire, and the lights came on, then it sparked again, and they stopped working. I checked all fuses, main harness, and lines running to it, to see if the wire would spark again (so i could figure out which damn one it was). Now I don't know which wire it is that connects the dimmers to the gauge cluster. It's down by the cd player. So if anyone has an idea, or knows which wire it is.... PLEASE HELP ME.

By the way.... If u read my post earlier bout the jdm h23. It's in now, and running very well.