when i boiught my k5 and replaced the PO's stereo, the groujnd was hooked onto a brown wire from the factory harness. im haveing issues with my dash lights and courtesy lights not working because the fuse pops everytime i throw the lights on is this not a ground? im lost here? also, behind the drivers side vent there is a small block with some black wires. is this the ground to go into then?