At the front of the radiator you'll find two pairs of wires both Red and Black. Typically they're taped to the harness with Blue electric tape. Those are the connections for the Fog Lamps in parallel (that means they are both powered off the same circuit, but not dependent on one another to work).
Inside the vehicle, typically behind the Fuse Box or Hazard Switch, (depending on whether the bundle has been moved or not) you'll find two sets of 2-wire connectors. In my car they were connected to each other even though neither circuit was operational.
The first circuit is for the Fuel Pump (Electric) and it's pair of wires are Green and Black/White. You can see the in-line fuse holder in the attached pic.
If you look closer in the pic, above and to the right of the connector with masking tape (labeled "console") you'll see another 2-wire connector with Red and Green/White wires going to it that has been taped with the Blue electrical tape mentioned. (See second pic.)
That is the connector for the SWITCH and (in-line fuse holder if you run large wattage lamps).
The wiring schematic calls out for a Red and a Red/Green, but the Red/Green connects to the Green/White wire that feeds the Side Marker Lamps and Instrument Lamps, so they may have changed the color in production.
The Fog Lamps, being on the same circuit as the Side Marker Lamps operate ONLY when the Light Switch (on the Comb Switch) is at least on Parking Lamp mode. If you wanted them on in lieu of the car's parking lamps you would need to wire them separately.
Take note however, that all you need to do is close the connection between the Red and the Green/White (or Red/Green) to have power at the bullet connectors at the front of the car.
FWIW
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