The only thing there should be with this "mod" is a diagram. Original, and what it will look like afterwards. If you can't figure it out from that, I suggest not doing it.
Randomly cutting "X" coloured wire and hooking it to this and that is just asking for trouble, you need a wiring diagram for your year.
Randomly cutting "X" coloured wire and hooking it to this and that is just asking for trouble, you need a wiring diagram for your year.