Anyone figured out how the fan control scheme works on an LS2 A4? I can't figure it out. The lowest setting is 192, but if I put anthing over 30 in there the fan runs as soon as you start the car, even if the ECT is 75 degrees at startup. What I want to do is make it turn on at 180 and off at 175. Turn both on at 185. Can't figure it out.