Green with yellow stripe wires

[aslanefe 333]

On the left side of the instrument cluster connector, red female bullet connector with 2 green with yellow stripe wires, I think it has constant 12 volts. Anybody (Midlife) know what this connector is for? Comes out of the bundle with red flat 3 contact (I think) connector. Marked with blue circle on the picture below. 

[Midlife 814]

For the optional trunk lamp. 

[aslanefe 333]

5 minutes ago, Midlife said:

For the optional trunk lamp. 

Thanks, the wire to the trunk runs with the tail light harness right?

[aslanefe 333]

And I think that red flat connector next to it is the taillight harness.

[Midlife 814]

Those 2 statements are correct.

[aslanefe 333]

10 hours ago, Midlife said:

Those 2 statements are correct.

I might as well run a cable to the trunk for a trunk light while everything is accessible, can you tell me what gauge wire I should run from that connector to trunk?

[Midlife 814]

16 to 18 gauge is more than adequate.