installing trailer brake controllers

does anyone have a writeup for installing a brake controller for the XJ?

I have an 87 XJ laredo with factory tow package but am looking to install a brake controller in it.

use the four pin adapter for stop/turn/tail/reverse

tap into the brake switch circuit (under dash) for the brake trigger

use appropriate sized wire for powering the controller, as well as running the powered brake lead to the rear of the vehicle