HI i got aftermarket foglights, i have the original holden fogswitch and i don't know how to connect it into the right pins, i've installed heaps of foglights but i got no idea how to connect the gmh switch to the fog lights
Easiest way is to use the plug that for the fog light switch.It's behind the light switch and you can use the existing wiring for the fog light. The wiring should already be in place.
As VT Acclm said, it will be taped to a loom and might require a bit of searching. You will probably find 2 plugs, one is for the foglight switch, the other is for the headlights on all the time option. The wiring for the actual lights should be behind the front bumper, sort of either side of the radiator support. Plug in a relay and fuse and you are good to go.