Hi, can't help with the pins, though a quick call to your local dealer may prove fruitfull, but what I can tell you, is that if you have AC and the pipes are routed right behind the offside headlamp access cover you'll need to remove the radiator grill, and drop the bumper to remove the headlamp to gain access. It was like this on my MJ, but other versions may have more space for them to be routed. Point to remember is that there are two Torx bolts right on the corners inside the bumper, remove the screws holding the wheel arches in place and move them aside just enough too peak through and you can see them, luckily my thin arms made possible to remove to get them.
If you are doing this it may be worth upgrading the headlamps and side lamps to Philips x-treme or vision plus or similar, they are rated at the same wattage as OEM, but are far better and the set of vision plus that I had fitted to my Landrover lasted 5 years and may still be working now as I sold it with them fitted. Got the x-treme fitted now - good but pricey, and still not certain that they may be any better than the vision plus.
Hope this helps