I am to the point to where I have wired up some neat little blinkers on front and back and am connecting all the wires inside the headlight bucket. I took lots of photos and taped the ends with little messages indicating what went to what, but I notice a solitary solid brown wire (coming out of the main harness bundle). I did some research and saw a reference about this being an unused wire. Does anyone know where it should go? I can't see anything like it on my wiring diagram.