i cant figure it out. i have the 4 main wires going to the back. ive bought the flush mount tailights and a small turnsignal too. so, i have a turnsignal bulb and tailight bulb. i foun that when the lights are on, i see wich wire is getting power for the tailights. i tried to touch the wires to thwe light to see if its workin and nothing. would this wortk? my manula is no help at all..its all giberish and blurred print. any help i need thanks!