I need to do the above to my Classic JDM STI before its test. It currentlyhas nothing, no light or switch.
What do I need to get and from where and whats the best way of going about this.
Thanks in advance.

 

If the rear light units are the same as my UK car, there's a spare hole for a bulb holder. Fit one, or one each side, and wire to a switch. The standard swtch takes power from both heads & fogs via a pair of diodes so that the rear fogs come on whichever of the front lights are on.
Don't forget you will need a warning light somewhere.

John

 

I needed to do this for my RA import before the SVA,. I bought some UK light clusters as the regulations are quite strict as to where the light must be sighted. If you use a pair of UK clusters all is ok.The switch needed to be illuminated and visible from the drivers seat.I took a feed off the cigarette lighter, didn't need to wire it in any special way. " Fog light on, fog light off" test passed.

Regards
Andrew