I noticed a concern about light hookup on 2016 Ford Edge with led lights. We contacted Roadmaster, they have a light kit that fits the edge. It requires modification in hookup that includes a resistor. It took several phone call to get the wiring straight, but it works great.
When towing the Edge, the battery must be disconnected. Roadmaster has a solenoid kit that is energized by turning on the headlights of the motor home. We also hooked up a cigar lighter socket direct to the battery to operate the brake buddy. We are very happy with the results.