Hi,
Should I pull the cover off thats underneath the bumper, or is it through the wheelwell?
Thanks!

I believe you can get to it through the wheel well cover.

On my 95 SC4, I had to remove the belly pan first. Then from underneath the car, there are two screws that are clearly visible and one screw on the top that is not visible -its the one on top that is somewhat of a pain to get to - I think it was 8mm. Then the whole housing slides out the front and you should have enough slack in the wiring to pull it out first and then disconnect the wire.