I am wiring up a new ecu for a b16a into my crx dx, my only question is when wiring up the new wires (2 new injectors, vtec, knock... etc), if there is an existing wire already there to the ECU do I cut it and add the new wire, or should I cut and splice all 3 wires together? I know a few locations need to be changed at c1 and c2, but as for the rest how should I treat them?