Removed about 10' of electrical tape from the taillight wiring harness. Straightened out the wiring, soldered and shrink tubed the splices. Replaced a few bulbs, tested, cleaned and checked everything and got it wired up properly. Now I have properly functioning taillights.
Cleaned the connections and attached the neutral safety switch plug with a dab of silicone. Hopefully I should have a start in Park every time now.