Premium Sealing: Adopting premium ABS material, the trailer junction box is waterproof, dustproof and with corrionsion for your wiring needs. 7 Way Connector: All the 7pcs stud has specific colour for recognition, white for GRD, black for 12V line, yellow for center AUX, red for L stop and turn, green for tail and USC, brown for R stop and turn, blue for electric brake.
eBay