You need to remove the relay for the fogs and run wires .
one to a constant 12vdc power source ,preferable one that only turns off with the car. Using the fuse box is easiest.
one to the fog light switch on the steering column
the foglight output wire is the same
You are going to need to be able to do wiring and remove parts of your dash to get to it.
There is a complete tutorial on here somewhere