dose anyone know what the orange and white wires are for on the rear harness of a 70 cutlass ?

I have,
brown- tail light/ lp light
yellow- left rear turn signal and stop light
dk.green- right turn signal and stop light
tan - fule tank sensor
white -?
orange -?

are these for my stop light switch? cause the after market harness has a stoplight switch harness thats 2 wires orange and white. and im confused on which one i would use..

 

Orange and white appear to go to the interior light circuit with white being positive to the trunk light and the over head dome lights and orange being the ground to the overhead dome light.

 

Which explains ALOT considering i dont have a dome light or trunk light anymore. I wish people took the time to get rid of the wiring instead of just the part it was connected to.

Thanks man, big help.

 

Theres also a light green, wire as well. You know what that is? I think its back up lights. Where would that wirenrun to nss?