One of the side effects of transforming the cab has been a lack of space to house a parking brake lever. So looking about I’ve found an electronic one from a jag xf. I’ve cut the end off the cable and swaged on a stainless mini fork.
Couple of brackets later and job done
Tested using a few fuses and it looks like 7.5v is the magic number. Now off looking for 12v auto reset circuit breaker