It uses Horn contacts .
Some more details on the build of late as well,
Since we fitted the long range tank, rear bar and wheel carrier, the rear 37's were just touching the flares a little easier, so we have now increased the rear bump spacers to 60mm, instead of 40mm in our standard long travel kit, to prevent the tyres from touching. We now have 160mm rear bump stop clearance at ride height, [120mm with 40mm spacers front]
We bought in some of Christo's rear bars, to test them for the desert trip this year with the 37 hanging off it, and ease of use, design, etc, to ensure we were happy with them, before we brought in any more, and so far we are extemely happy with the build quality, and design, and we will be adding a jerry can holder, and fold down table design to the wheel carrier in the next few weeks.
Using the extra long 12" stroke front and rear shocks, and the bump spacers, we still have over half the shock stroke in droop, as well, so the travel works, with the longer free height coils, and effectively I could now go longer rear shock, or move a mount, for the extra 20mm spacer effectively in the rear.
And Thanks Romer