| Well... I dont know why you cant use the switch... all the switch does is route power to the fuses... then to the fog lights... if you are prewired... then you should be able to just hook up the switch... install some fuses... run the wires from the front electrical distribution box and then to the fogs... if you look on the lid for the distribution box it should show you the location or place for the fog fuses and relay. If I was you I'd contact the seller... or search the internet for a proper installation guild to prewired fog light cars.
Good Luck,
Les
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1997 E36 M3 1990 E30 325i |