Rear Light plug - Sidelight Wire

[davidv10]

I am looking to wire in some footwell lighting to come on with the sidelights. I did this in the old car by tapping in to the Heated Seat button light, but the Nismo does not have heated seats so i have to find another power source.

The rear light wiring would be a good place to tap in, but i am not sure which of the 5 wires is for the rear sidelights.

I believe, but will double check and get a picture, that the wire colours are; red, black, green, brown, tan.

Any help would be greatly appreciated!