noob
yes use your stock harness. ADD vtec signal and ground wires, knock sensor wire, and if you have a vx you have to do some o2 sensor modifications. if you don't have a vx, you just have to extend the o2 sensor wires.
here is a pic of my dx harness when I was redoing it for vtec. You don't have to tear your harness apart like I did, but I wanted it clean and I wanted all the wires inside of the looms.

Green is where you add the knock sensor wire and plug, just take it off your JDM harness.
Red is where you add the vtec wires.
run them up to the end plug, and then from your end plug you can run them down to your ECU. It's really not very hard at all
here is a pic of my dx harness when I was redoing it for vtec. You don't have to tear your harness apart like I did, but I wanted it clean and I wanted all the wires inside of the looms.

Green is where you add the knock sensor wire and plug, just take it off your JDM harness.
Red is where you add the vtec wires.
run them up to the end plug, and then from your end plug you can run them down to your ECU. It's really not very hard at all


