I agree with Buzz. There are a few places where I will solder wires in a car harness, but not very many. I mounted my fuse block under the dash with a large velcro strip. That way, I could pull it down to work on it. I had a Ron Francis kit, so the layout was something different, but I started at the fuse block, laid everything out and temporarily tied bundles together with wire ties.

I left the entire length of wire lying by each terminus until I knew where everything went. Then, I did groups. Main power from battery to fuse block then ignition switch and engine wiring, including the fuel pump. Lights next, then other accessories, then the behind the dash wiring. I have a terminal board on the back of the dash so I can remove everything as a unit.

I left wire ties on the bundles under the dash and in the trunk. Where I had to run the wires along the floor (near the sill or the trans hump), I cut the ties, made the bundle flat, and secured them with the same aluminum tape I used to seal the joints on the floor sound deadener/insulation. Somewhere on the site, there are some photos of most of this, but I lost my pictures in a computer crash.

You're a logical guy, Roger. Think it through, and you'll be fine. Although, there were a couple of times I had to say . . . "Darn. I cut it off twice, and it's still too short."