Plug the new lights into the original harness. The two little wires for the halos need to plug into the side marker lamp. One will be a ground and the other a constant. The white wire from the halos splice into the black wire to the corner lamps. The red wire from the halos splice inot the red wire to the corner lamps. The green wire on the corner lamps is for the intermittent blinking, which you will not need to splice anything into.