The Autoback reversing system makes it easy, quick, and safe when reversing loaded trailers that are fitted with hydraulic over ride brakes. 

This latest development makes Autoback an affordalbe option on all trailers, and also easily retro-fittable to existing braked trailers. 

To wire in the Autoback simply connect the two purple wires into your reverse light circuit. Polarity should not matter.

Trailparts also recommend use of Loctite on rear nut during installation.