I have a 2017 Ford Edge SEL that I am starting to get all the necessary parts for flat towing base plate bx2657 and just a week or so Blue Ox finally came out with a wiring kit for the tail lights bx88334 I am planning on disconnecting the battery and running a wire from the RV to the car battery as well. I will also install a 12v plug in the car that will be connected to the car battery at all times. If you try to run your brake form the rv battery and your hitch fails the brake away switch may not work due to the loss of power.
