Under my dash, by my fuse block, there is a plug with two wires. A Purple w/White stripe wire and an all White wire. The plug is plugged into another plug with no wires at all coming out of it. It just has a resistor or something similar used as a jumper and it's all taped up. What in the world is it. I've got no key in ignition buzzer or headlight buzzer functioning in my Blazer. Could this be some sort of fix for the buzzers or something? I can't see where it should be plugged in and the guy that I bought the truck from has no idea. Got me scratching my head!