I have a 99 blazer 4wd ls. It didnt come factory with fog lights. I bought some aftermarket lights, which i know how to hook up to an external switch. I came across a headlight switch with the fog light button on it. My truck had the wires that pluged into it and i saw a fog light relay in the fuse box. My question is is there a way to wire up the aftermarket lights to the factory switch? this way i wont have to screw a switch onto my dash.

 

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