Amazon.com: LATCH.IT RV 7 to 6 Trailer Wire Kit | V2.0 | Weatherproof 7 pin to 6 pin Trailer Cable | Flexible Coiled Cable Stretches to 8 ft | Plug-N-Play Cord
CURT Adapter (7-Way RV Blade to 6-Way Round Trailer, Center Pin Auxiliary) 57260 - The Home Depot
Replacing 6-Way on Truck with 7-Way | etrailer.com
Choosing the right connectors for your trailer wiring
Dr Infrared Heater 6 ft. 7-Way Trailer Plug Cord Wiring Harness, Heavy-Duty Weatherproof, Corrosion Resistant Inline Cable, for RV, Campers DR-RV106 - The Home Depot