I have a 94 gt 5 speed. it used to be an automatic. When I pulled the console I found this wiring harness laying there. It has a bulb attatched to it. I know this bulb is for the shifter bezel light that used to be there but there are two other wires that are attached to this harness that go to no where. One is black and the other is grey. Would these wires go to the overdrive button on the shifter or are they for something else?