bought the wiring harness for 15 quid, a couple of meters of extra cable and a piggy back fuse to tap a live in the cab, I also used some heat shrink and a crimping tool. pretty easy and self explanatory from the schematic that came with the lights.
hardest part was finding somewhere to mount the big ol' switch
there is a guy who's put them in the grill of a 5.1 on one of the face book groups i'll get you a link I want to put some in the grill too but i've a commercial bumper so no seperate grill. Got me eye out for a cheap front bumper to do some hacking and chopping
NEW Car License Plate Frame Number Plate Bull Bar Bumper Mount Bracket LED Light | eBay