yes i got his add on from gm.the problem is i cant find the wiring diagram that came with it.gm will not help me on this without buying another one just for the diagram.this is a add on kit for any car or truck.the box has seven wires,red(fused)power wire/black=ground----ok now what?it has a white,yellow,light brown,brown and pink wires.it also has a photo cell at the end of two small black wires.so it can be installed at the glass.if anyone has any info on this i will buy dinner........lol.......Thanks MechanicMoore
P.S. there are no part numbers on this unit....sorry not much to work with,i know.
i know what your talking about it's a delay timer for the headlights and an "automatic on" when the sun goes down, i've never actually installed one but my advice is to get a 12 volt light of some sore (fog light) a car battery and a test light fuse every wire with a 10 amp fuse and test it by trial and error if you know red is 12 volt, black is ground then brown should be parklights, the other i'm not sure but i do know that the timed lighting is controled by the activation of a door pin, once the door is opened the lights start to time out because if they didn't the headlights would stay on untill the battery was dead. and the other 2 wires may be for the photo cell itself. if you can take a photo of the unit and i'll see if i can get more info for you
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canada's cold eh.