I would first start by turning your running lights on and using a circuit tester # PTW2992 check which wire (black or white) is your power. From my experience you can't always just go off of the standard wire color for power/negative as manufacturers love to complicate things. Once you know which wire is your power you can wire the Red and Brown wires from the LED Marker Light RV Side Cameras w/ Night Vision for Furrion Vision S Systems # FCE48TASL to it and the black to the ground wire.... view full answer...