Front fog 3pin plug question

[Almera96gtin15]

G'day lads, my R33 s2 has a do luck front bumper with what it looks like s1 front indicators. I noticed that there is a 3 pin plug with black, green and red (which has been snipped) 

I want to fit some sort of fog lights to the bumper, and wondered if anyone knows what the red wire does and if it can be power to an aftermarket fog light? If I run an earth wire also. 

I have the fog symbol on the right stalk. 

 

[Duncan]

Unless someone knows this wiring off the top of their head...take a multimeter meter and confirm which wire on the car side of the cut has continuity to ground (earth) and which has 0v when fog lights are off and 12v when fog lights are on.

 

[Almera96gtin15]

Makes sense, thank you. I'll have a look.