MULTI-TOW 7-Way RV & 4-Way Flat Vehicle Adaptor Plug Hopkins
4-Wire Flat to 4-Wire Flat and 7 RV Blade Adapter
Multi-Tow® Adapter; provides multiple towing options from one connector
Includes dust cover
Impact and Corrosion Resistant
Some vehicles have the 4 pin plug in the original wiring harness and the wire for the charge and brakes with blunt ends.
This will adapt it to the 7 RV with the 4 pin