The simplest thing to do would be a "wireless" system. The transmitter could be mounted somewhere inside the Lance. From the transmitter, there are two leads, one to the camera & one to a power source. Your power source could be your headlights hot wire behind one of the tail light assemblies, if you don't mind your lights being on in the day time running down the highway. The monitor is connected to a 12 volt receptacle inside the truck & receives the feed from the transmitter / camera when the lights are on only.