1 = front and rear strobe lights
2 = strobes + the blue light on the pole
3 = momentary siren (Strobes stay on)
4 = siren on
5 = Power to siren/strobe electronic pack under the hump
6 = dimming of pole strobe (so I believe, not sure if its used on Oz bikes)
7/8 = not used ( wiring goes to the rear cluster, Ive used the 7 position for my driving lights)