Greetings all!! I hope I have finally hit on the right place to get some needed info regarding fixing a stuck selector knob in my '94 Impreza Wagon (4dr). The control knob for selecting air con, max, vent, bi-level, heater - does not change when I turn the knob to change positions, it turns but the air only blows from the front dash vents (cold/aircon). Although it's okay for now with the current heat wave we have, but sooner or later I'm going to need to have the selector switched on the "heat" setting (sigh!!). I can't get any of the other positions to work. HELP!!