Not all 7x5 connectors are created equal. He has all 7 wires on 5 including the reverse lights. If your trailer has reverse locks then this is what you need.
Nissan Brake Control Wiring Adapter: Tekonsha 3050-P - Enhanced for Seamless Integration
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π LIMICAR Trailer Lights: Upgraded IP68 Halo Glow Kit for Trucks, Marine RVs, Boats, and Campers - Brake, Stop, Turn, and Tail Lights with License Plate LED - Includes 25ft Wiring Harness
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CZC AUTO Exclusive 12V LED Submersible Rectangular Trailer Light Kit with License Plate Bracket: Ultimate Lighting Solution for Boat Trailer Trucks
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Outdoor LED lamp 100 LED 3 modes, Solar-powered lamp with motion sensor wireless
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