[paolo]

Here is what you need to do, wire them up with the positive to the battery, the negative to the grounding point, and the trigger wire, you should have 1 wire in your kit, if u have two, then just use the side of the wire coming off the relay, and connect it to ANY+ wire at the end of the fog light connector, and your sett.
That way, you are running all the heavy guage wire to power the fogs in the engine compartment area, and using the existing (thin) fog wiring to energise the relay.