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Anyway! I am in the process of installing a hitch (curt manufacturing, $160, great fit. installation is not the esiest thing in the world though!) and right now I am battling the wiring. Ford wants like $180 for the tow light modulator!
So, I think I've come up with a decent circuit design, and soldered it up on a little PCB, i'll be testing it in the next week or so. Would anyone be interested in purchasing these completed and/or seeing the design?