7 wire trailer plug wiring
I have a 2008 E350 Wagon with a contour bumper. I'm trying to install a trailer plug but can't seem to find the harness to do so. One source told me that its on the left frame rail, any suggestions as to where exactly?
Also, I was told by a parts guy that there isn't any harness and that I need to hard wire it and that the taillight voltage is too low so I need a "box" of some kind that boosts voltage by taking it from the battery and only lets it go to the trailer plug and not the taillights.
I also need to wire in a brake controller, is that plug that is attached to the outside bottom of the steering column what I'm looking for and where do I get an adapter fot it?
As always, thanks in advance.
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