Hi Stephen,
I'll see if I can dig up a pic for you.
The cable (shortened XJ6 swb) should exit the cab through the flat sheet metal at the base of the cab directly behind where the handbrake bolts up.
From here it should loop upwards and outwards over the small connecting bar between the two main cross rails, back down and under towards the calipers.
Probably doesn't make much sense without a diagram !
You should also be able to set the point where the cable passes back past itself so that the cable tension keeps it clear of all the suspension / brake gear.
Hope this helps.
Cheers
Andrew