Seven Plug Trailer Wiring Diagram : Wiring Harness Conversion U S To European Cr4 Discussion Thread / Trailer wiring connectors various connectors are available from four to seven pins that allow for the transfer of power for the lighting as well as auxiliary functions such as an electric trailer brake controller, backup lights, or a 12v power supply for a winch or interior trailer lights.

Seven Plug Trailer Wiring Diagram : Wiring Harness Conversion U S To Europ…