I am reworking a 2001 harness for my lq4 swap into my 98 c1500. Now I am following the instructions on lt1swap for the harness and it show what wires to cut. It shows all the air cond ones. I want to keep the air in my truck does a 2005 pcm control the air or is the air in my truck controlled not by the pcm? I havne't cut them but not sure if I should or not.