Here's the harness I made. The factory fuel pump harness has a connector under the car. I discovered this is the same connector used on the brake wear sensors, so I attached that to the relay control wires, so that I could connect it all without altering the factory harness. I covered most of it in protective wire sleeves of various types -- mostly just using up what I had. Sheathing is just what I had handy, with dual wall adhesive-lines heat shrink where needed....