I think Dizzy fitted them too

The black/yellow = heater element switch wire,
Red = live,
Brown = earth
the brown wire simply clips into the earth pole near the fuse box.
^This is all from the top of my head but the black/yellow wire connects to the rear windscreen de-mister switch for the heating element to turn on/off.
They are easy to fit. Simple bolt off/on job but the most annoying problem is with the door membrains. Hate that stuff!
Blue