I Want to Connect a 5 Pin Vehicle Connector to a 4 Pin Trailer Connector No Brakes on Trailer | etrailer.com
Amazon.com: Oyviny 7 Way Round to 5 Way Flat Coiled Trailer Plug Adapter 7 Pin to 5 Pin Trailer Coiled Wiring Adapter Full Length 5 Foot (60 inches) : Automotive
Trailer connectors in Australia - Wikipedia
Amazon.com: Oyviny 5-Way Flat Trailer Wiring Harness Female Plug Connector with 31 inch Wire Lead Vehicle Side 5 Pin Plug Extension Cable with Brass Terminals for US Standard Trailer : Automotive
Seachoice 7-Way Round to 5-Way Flat Cable Adapter, Boat Trailer, 18 In. - Walmart.com