I have a 2006 Ford Mustang v6 4.0 the ac will not turn on. I have checked my fuses they are good and I’ve checked my blower motor it works .Also I replaced my blower motor resistor with one from a 2009 mustang and it still will not turn on. I think it might be the plugs that control the speed and where the air goes to because I while I was replacing the radio I seen that on the one where u control speed the wires are lose and as for the plug where u control where the air goes it was hard to move it up and down so I used a flat screw driver and the part that moves up and down to take off the plug snapped in half PLEASE HELP!!