I have an '02 Escape with the factory trailer tow. I had a brake controller and 7-wire plug-in installed in 2003 for about $250. Had it done at a professional place that only does hitch installs and has been in business for many, many years. More expensive than other places (like U-Haul) but I've had zero issues with their work. I very much recommend going with electric brakes on the trailer, they help a lot.