I ordered a third brake light from CBS. It turned up today so fancied fitting it.
I am not the best at drilling and tapping so decided to take my time.
First I taped up the area and measured up the middle.
The first hole to drill was for the cable going in the roll cage.
Hole drilled.
Its impossible to drill up into the bottom of the roll cage so I've made a small hole that will come out under the boot cover.
I used the left over excess handbrake cable to pull though the wiring.
With the wiring in place I marked up the holes that needed drilling and tapping.
The first hole drilled and tapped.
All done, really pleased with the results.. Drilling and tapping is not my strongest point so glad it went well.