I finally got around to installing the Roadmaster plates and Air Force One system.
The Roadmaster plates are massive and I really like the extra side-to-side support provided for with the bar that installs parallel and just in front of the bumper. When the removal parts are not on the car, there's almost nothing visible.
Where to mount the AF1 controller wasn't as big of a challenge as thought. I mounted it in the passenger side wheel well. I suspect this is the same location Jeep uses for the air compressor found on the Overland model. A picture of the installed controller is attached.
A few comments, lessons learned.
-- At the advice of Alliance Coach, they installed a dash light in the coach to tell when the brakes are applied in the Jeep. It uses the brake controller pin in the cable between the vehicles. It will be wired through the optional air brake sensor that will be installed in the air line in the Jeep. This would seem a bit better than the Blue LED hanging from the rear view mirror.
-- If you want to mount anything to the steel bumper, it's amazingly strong. Although the bumper is very thin, we went through several drill bits to penetrate it.
-- The air line and wires for the lights were ran through the passender side fire wall next to the 12VDC main battery cable.
Testing will have to wait a couple weeks. The coach is in Florida right now. I'm looking forward to having a car when we get to each campground.