I've run into an issue. I've talked to a couple of GM Parts Websites. Some have the oem GM fog lights but can't get the authorization code for a dealer to access the BCM to program it. So I'm bypassing the BCM and going old school. I've added LED's to a rocker switch I already had that kinda matches the interior backlighting color and will be installing a fuse/relay under the hood. I will drill a small hole in the firewall which I will insert a grommet in it before running the wire cable. I will wire the white (blue tint) LED to the interior lights circuit and the symbol LED will be wired in with the fog light relay. I will tie in the switch contact positive wire to a circuit that is HOT with the ignition key in the RUN position. If the fog lights are accidentally left ON, turning the ignition key switch to the OFF position will also turn OFF the fog lights to keep from draining the battery.