I am working on my 71 fj40. When I purchased the electrical was partially installed to a painless wiring harness. Due to the time it sat between installation and my purchase all of the wording was gone. After a month of tracking wires I pulled it and started installing a ez harness. To date, it runs, headlights/taillights are working. Have directionals brakes gauges left to go. The bottom clamp on the directional connection is broken, I can try to fix. I was thinking maybe someone has come up with a way to upgrade/update this system. Any thoughts?