fog lamp wiring..
if you already have front fogs, tap the power feed off those. you will need a multimeter to correctly IDentify the wires but i can already tell you that the harness goes through the firewall and the wire will be available behind the centre console near the footwells. i doubt you will need a relay and the line is already fused.
here's a
general guide (start from pic 139) to what i did on mine although it has undergone
major changes since these pix as i'm now using my driver-side reverse lamp with a red LED as a rear fog lamp -- it looks the part!