Fuse F7 looks to control the tailgate lights but is 30amps so it must be connected to other things. Color WH-RD Fuse F40 is only 10amp. It controls the Rear lights and trailer. Color TE-GN Sooo add a dash switch...and now the trailer and rear of Truck can be turned off and on....now you can say thanks to trucks when they let you in....or out run a Smokey. When i get my truck back i'll test them out.