sparky66vw ; yeah i can see what you mean about it and i ran the same situation and what most peoples do concat me with spread the word after see my workmanship as far for my truck i have the same one for over 10 years (1989 F-250 4X4 diesel with over 560,000 miles with orgineal engine ) i just done chating with my freind ( he is a electrican also ) and he fill me in about 2 wire travlier and it is the excat way you desribe it on the photo and most sparky in my area try to advoid 2 wires trallver now .
also when i genrally get done with my work i try to take the photo with me with before and after job is done so i can show how much progess it is done
merci marc