Aftermarket Wiring Harnesses

One of these days I am going to dig through my files and find copies of the, ahem, "wiring diagrams" from some of the various folks out there. Some look like they were drawn on cocktail napkins. Some are better. Some are really good. Yeup, most are Ford or GM based. I tend to think the GM based ones are better, but it could just be personal bias and have nothing to do with how the circuits actually work.