electrical - Does a brake controller need direct battery connection, or would a switched source work? - Motor Vehicle Maintenance & Repair Stack Exchange
REDARC Tow-Pro Brake Controller with Wiring Kit - Hilux and Fortuner - 12volt | Dual battery | DIY | JTS12volt
How to Install Your Brake Control
Bendix Ultimate Tow Electric Brake Controller | Supercheap Auto
REESE | 3024-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with RAM 1500, 2500, 3500
Trailer Brake Controller wiring question - after plugging in brake controller into the harness the brake light lights up, kinda if like red wire (brake pedal signal) getting shorted with black (battery
REESE | 3035-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with Ford, Land Rover, Lincoln, Mercury vehicles
TEKONSHA | 3031-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with Toyota Tacoma, Tundra