Should my 2008 SE + with the 3.5HO be pre wired for fog lights? The wife wants them. Is there any aftermarket light that would work with the factory wiring and factory switch? I realize the dealer would have to scan it but I would want the factory switch but don't really care if the lights are factory. I can't see buy the complete factory kit if I don't need the wiring harness. How do I check for pre wire?