so the leds are still located in the top headlight houseing with the lows and highs , cant see it too well but the led's look like they are the white/black wires and are already tied in together for +/-, think its safe to say black is going to be ground, white will be power so that will be up to you for when you want them to come on, shouldnt have to worry about drawing too much power away from your normal lights as leds draw less current so you can do either days/bumper or lows, might be able to see them better with lows at night and just splice them into the factory harness as it looks like the halo's (orange,black wires) are all wrapped together,its alot easier than it seems as long as you dont mix the ground/power and have a good solid splice, or if you wanted to get fancy you could obtain sum, i think they use either a 14 or 16 gauge wire ,and make the trip down to the fog lights so you could use the for light button to control when you want the leds and halo's to be on but then your fogs are going to on as well
white and orange into the power wire, black and black into the ground wire on the factory harness