The easiest way to check if the wiring is there is to find where the relay should go in the fuse box in the engine bay. Use another relay of the same size from the box to plug into the fog light socket. If the wiring is there it will push in firmly, if the wiring is not there the relay will be quite loose.
Let me know how you go.
The Wires will be all there, My only Problem i found was the bar is Not 100% the same... have a Look... i have the Bezels for the Spottlights and they dont sit Right.... Good luck with it But ist Pretty Costly, eg the two Bezeles and the Chrome Sounds were at Least $50 + $40+ for the Fog Lamp switch, then you wither have to Cut your Dash or Buy a VX SS dash Surround $110, Fog Lamps, $100+ each. then Paint the Surrounds of the fog Lamps