[Riesenstep]

trailer wiring diagram or any help please

 

[rav4system]

Amazon sells the wiring harness that is plug and play...very easy to install

 

[Dr. Dyno]

Many of the hitch manufactures sell P&P kits too, but they are all just for stop/turn/brake lights. Trailer brakes require adding a brake controller and more wiring.

 

[Blogson]

For the 2006 RAV indicated in your profile, E-Trailer in the U.S. sells wiring harness kits. This is a link to their installation instructions, and there are links to installation videos on the website: Custom Fit Vehicle Wiring by Curt for 2006 RAV4 - C56165