Well...I have a 2002 Excursion and hopefully its at or near the same place. It took forever for me to find. I found it behind the heater/radio dash panel. It was clipped to the metal braket to the left, once you have the panel off, about the same height as the heater controls. Hope this helps.
When one is using a trailer on their car, an electric brake controller measures the car's braking speed and adjusts the electric braking power of the trailer to correspond. This helps avoid collision between trailer and car.
The brake wire is under the floor mat.
No
If your looking for the actual wiring harness that goes to your brake controller, Mine was located in the jack compartment in the back of the suv. If your looking for the conector where the wiring harness will plug into, it is located under the dash right in line with the throttle pedal towards the bottom of the dash. Mine was wire tired to silver bracket.
etrailer.com/faq_cbc.aspx
I found it easier to use the wires to the tail lights on the tractor.
On a 2003 Lincoln Navigator : Fuse # 29 is a 30 amp mini fuse for the trailer tow electric brake controller , trailer tow 7 wire connector ( electric brake )
Air over Electric brake controler like Warner P# 1300-80. but be ready to open your wallet. They range from $350-$590 US (2012).
Electric brake controllers (for trailer towing) can be added to any vehicle however, I have not ever wired one so I can't advise you on that. There should be instructions with the controller, unless it's used, in which case I would do a google search for info on that.
DOT ( 3 ) brake fluid , meeting Ford specification ( ESA-M6C25-A ) according to the 2004 Ford Excursion Owner Guide
The brake controller has to be hooked up to a power source. The controller also has to be hooked to the brake switch or tail lights, then to the plug for the trailer.
Not all 1500's where built with it. If it is there it will be above the parking brake.