Well it wouldn't look factory true. There isn't any splicing cause its a stand alone system all it does is run off the battery with a couple of grounds at a couple of frame bolts, as a former dealership mechanic stand alone fog light systems never void warrentys cause they don't alter any systems. Your more apt to void a warrenty putting in a autostart in. Second of all if ford made it with all the wiring than why is the circuit for the fuse incomplete? I would also say that if u need to replace the bcm there is reason to believe they wanted to make it as hard as possible for dyi to tamper with the system.