Well obviously what i did isnt working properly. But from my understanding the 4 pin connector sends out A, B, C and P signals. Just search PNP plug 4l60e on google for a diagram, and splice those wires to the c200. So you will have them split to the LS ECM and to the c200. Wire colour should match. Hope this is some help. I dont know why my lights dont all work. I unplugged the signal B and Park, 1 and 2 still all work, but according to that diagram of hi and lo signals, nothing should light up.