I have auxiliary independently switched backup lights on the truck. They do wonders to push tailgaters back, especially the foreign cars with the blue headlights and ultra bright fog lights. An Atlanta radio announcer says that German cars come with either the signal light or the fog light option but not both. Most of these idiots run the fog lights all the time. When I'm towing, I don't care if they push me or not. If I have to stop, they are going to have to bore though 31 feet of steel, fiberglass and plywood to get to me.