Route the 40-ft. 2-conductor cable (black/red) under the motorhome (preferably along the driver side frame rail) from the socket to the front of the motorhome. Follow existing wires or other protected routes. Keep cable clear of parts, which are moving or become hot. Securely attach the cable under the motorhome to prevent damage from road hazards.
Using 2 of the butt connectors (provided) connect the red and black wires of the monitor to the red and black wires of the 2-conductor cable.