Ok so anything that is red can go. Now you see the black and purple. Both are needed if running the tail light. Now my reason for putting the purple was im am unsure if you need the regulator without lights which i dont think you do but hopefully someone can chime in so we can confirm it. One other thing i believe newer models have 3 wires to the tail lights one is constant, other goes threw the switch on your back break lever and the last is ground. You don't need any of them including the switch if you dont want a break light either. last but not least the little blue man thats where you tie in your tether switch and make sure its normally open circuit when you get one. Well shit almost forgot the orange line connects those two wires. If you need anything else im more than happy to help and have fun un-taping the harness its a bitch.
EDIT: picture wasn't working