12v Trailer Wiring Diagram June 10, 2019 24v truck with 12v trailer . I am sure it has been addressed on this sight before but here is a helpful schematic I found for wiring your 24v truck to run 12v trailer lights. You www.benzworld.org How To Rewire A Boat Trailer LightsLight Socket DiagramRheem Furnace Wiring DiagramWhelen 9000 Wiring DiagramMsd Street Fire Wiring DiagramHow To Replace Fan Switch4 Way ToggleHow To Change A Dryer Plug