4 Function 7.5m + 2.5m Cable Rear Tail Lamp Trailer Light Tow Lightboard Caravan
Suitable for : Universal Truck trailer Van Bus. Hole pitch: 5.5cm. Pin 3 = White cable = Ground or ground connection. Pin 7 = Black wire = Position light left(If your hose is 6 wires, you can make a bridge with Pin 5).