This towing system, I do enjoy and like a lot as it helps me in two problem areas. No box or unit to set in front of the drivers seat and you don't have to cut the tow vehicles brake line to install.
I was at an RV show in Florida when I learned about the Unified Tow Brake. Here is the website if you are interested. I am not a sales person for this or anyother product, just and RVer who found something I like. Also the Unified Tow Brake is fited to the tow vehicle under the hood. When you checkout the web link go to the bottom of the page for the whole story.
Unified Tow Brake