I can't get that cover off to find the earth point. Moved about 1cm. Then it's started to crack, white line forming across plastic.Hi Blob
If you take the panel of the dash end at the passenger side , the one with the air bag warning sticker . It just pulls off you can use one of the fixing screws that hold the metal frame inside the dash poss holding the fuse box .
This gives you good access to the wiring and you just loosen the fixing screw and fit the wiring terminal to it , the wiring can be led up the n/s pillar behind the trim out of sight from here .