(Plate Lamp), PIN 6 - Red Wire (Brake lights), PIN 7 - Black Wire (Left/H Tail & No. Plate Lamp). This is a 12V trailer connector plug. It supplies power to your towing and truck. 1Pc x Durable 7 Pin Aluminum Alloy Plug Trailer Truck Towing Electrics 12V Connector (EU Plug).
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