well depending on where you get the sport assy from, some some with an adapter that plugs into the 1 plug in yout truck then had 2 plugs on the other end for the dualbulbs, others (especially if from a just yard) just have the 2 pigtails, all you do then is cut the existing one off, the splice the 2 new ones in connect the grounds togetherand onto the ground from the stick wireing then justhook the high beam wireto the high beam plug, and thelow beam wire to the low beam wire

thats what i would do first then just ise those plugs to hook up to your HID's i use http://www.n-motionauto.net/hid.aspat work, no splicing what so ever with them and there reasonabley priced too, so you just plug your plugs into the balests, put the HID bulbs in then you have full functioning HID's...pritty hard to f up then you just quad them and your set

with the sport assy you can not adjust the low and high beam sepratley thow so when you adjust for one you are also adjusting the other