Behind the centre grey bit of the dash in my sons AU S1 XR6, there are vacuum lines to switch the air flow from floor to screen etc. Ive plugged the main one on (easy), then two single lines (one elbow, one straight) go to the resistor looking thing (no idea what that is) but there is another airline plug, with 2 hoses in it, one black, one dk green, any idea what these go to? I cant seem to find a blank spot to plug them into.

Problem solved.

There was a white vacuum switch that attaches to the rear of the temp control dial. When I pulled the dash the first time I broke the part where the cable connects to on the heat/cold control. When i replaced the ac control setup it didnt have the vacuum switch there, and on the other one I took it off a few weeks ago, but not fitted to the new one. I just remembered where it was and fitted it.