Trailer Electric Brake Wiring / Trailer Connector Pigtail Replacement & General Trailer Wiring Guide - Hydraulic disc brakes controlled by an electric brake controller are also (a) the big mistake when wiring electric brake magnets, is to wire 3mm cable down one side then run more wire across the axle to the other magnet.

Trailer Electric Brake Wiring / Trailer Connector Pigtail Replacement &…