Okay first things first, I apologize if I'm posting this in the wrong area. I hope I didn't miss anything, but I've searched through the forums and have not found quite what I'm after, so if by chance I'm blind and just skipped over it please forgive me.

TLDR: What is the color guide for the 06+ headlamp 8-pin connector on the car wiring harness side?

Backstory:

Bought an 07 350z a couple years back, had been in an accident according to the owner. Nothing major but the stock headlights were destroyed and were rigged up (hack job) to work with an older 03-05 set.

I decided to replace them this year with 06+ style set that I got for cheap and cant figure out the Hi-Low beam switching wires.

I have the turn signals, and park lights setup correctly, so its just this thats got me a little confused. Both Hi and Low beam wires on each side provide 12v and I only have one wire left to connect them with on the 8-pin connector and its really making me think I've messed a connection up or I'm missing something etc. Any help is appreciated.

I will provide pictures as soon as I can, if requested.

 

All of the diagrams you need are in the factory service manual, which is available online. Sounds like you have some work ahead of you.