12' Trail center console 12 volt outlet wiring color polarity?

[ltsatch]

I am looking to tap some power off of this outlets wires. Being quite the wiring novice I was wondering if anyone knew which wires were hot and ground? One wire is black and white, the other is a solid light green color. Borrowing a meter is my next step if no one knows here. Search function did not help.

 

[daytonaviolet]

I am looking to tap some power off of this outlets wires. Being quite the wiring novice I was wondering if anyone knew which wires were hot and ground? One wire is black and white, the other is a solid light green color. Borrowing a meter is my next step if no one knows here. Search function did not help.

I used the green (pos) and white (neg) one. In my ‘16, this provides 120W/10A of power.

 

[ltsatch]

Borrowed a meter, it ended up being the green wire as positive.