By way of helping others:
My question as I was getting ready to buy my magestic 23A was whether it had the factory tow harness. The Ford could be shipped with or without it. Knowing that info dictates what wiring you buy to install a towing brake controller. Sales at CA didn't really know.
If not present, you connect into the always present towing connector in the dash to find it doesn't have power. You then add connections to give it power etc, which is a bit of work.
I was pleasantly surprised to find that it does have the factory wiring activated. I was able to connect into the plug behind the coin tray in the dash and have power present.
It had a 4 pin trailer connector already installed. I was able to find a square grey 4 pin plug(with only 3 wires) on the driver side frame rail just behind the black/gray water drain valves. Using the wires from that plug I was able to convert the 4 pin trailer set up, to the 7 pin setup, with active tow controller. It saved me from fishing some wires which is always nice.
