Thanks folks.
I’m Persevering but I just can’t budge the bugger.
Tried to trace the cable route too but struggling to see where it joins, does it just go go into the fuse box ?
also, what might this curious beastie be ?
Looks like it might be EAS related but seems a little weird !
From memory it has a plug somewhere near the brake flexi-hose. Pretty sure I recall something around there.