Popping off the plastic panel on the bottom of the hatch is easy enough, after you remove the two screws that hold the handle on. I then drilled through holes for the wires, secured the lights, and wired them together. I wrapped the battery pack in foam so it doesn't rattle.
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 01 XT225, 89 TW200, 09 TTR125, 07 TTR90, 07 CRF50