I am pulling the dash out of my GT to re-cover it as part of a more-or-less complete daily driver rebuild. How do the knobs on the heater controls come of? The temp control on the left side has a hole in the side with what looks like a set screw in it and the one on the right side has a larger hole but I cannot find anything that loosens either knob. Also how does the oil pressure switch come out of the dash? I can't see anything like the retainers on the other gauges and can barely get one hand on it.
Thanks