I'm almost ready to rewire my tailgate and replace hinges. Can anyone tell me the specific function of all the wires that pass through the hinges? Haynes is not much good for this kind of thing and the archives have good instructions on replacing the wires but I can't find a good schematic with wire colour and function. On the driver's side I have 2 wires - yellow through the hinge is connected to a black wire that goes to the defogger, grey goes to the left license plate light and is y'd off to a connector that is disconnected in my hatch (the previous owner did some creative wiring back here I think). The passenger side is OK I think - 4 wires - one for the wiper, one for the door locks, one for the license plate light, and one ground? The replacement passenger side hinge I got has a ground wire from one side of the hinge to the other - I know my current hinge does not have this. Right now everything works back there except the defogger. Thanks.