Save loads of money on labor by installing your new electric brake controller for your trailer. The electric brake controller will improve stopping performance and safety. It will also reduce the brake wear on your vehicle when towing.
First disconnect the positive (+) battery before anything. The mount the trailer connector near the hitch on the rear of the vehicle. Then mount the controller bracket in the desired postion. If there is no bracket, then mount the controller and remove to make connections simpler. Pre-mounting the device will make it easier to mount after all wires are connected.
The main wire (feed) is usually blue and should be run from the controller to the trailer connector. Typically this can be run through a hole in the firewall that is already there from the factory, if not one must be drilled. Then run under the vehicle to the connector.