So after fitting my new PCM replacement I decided that the stick on covers from clima repair were useless and ugly and letting the side down I decided to followi a post here and repainted the switches. I removed them without any issue and scraped off most of the remaining sticky coating. I then decided to remove the residue with thinners at which point one of the switches fell into 3 bits, it would seem that the coating was holding things together. So I have one clean and ready to paint switch and one almost useless one I'm not sure superglue even reinforced from the back is a long-term solution. Does anyone have a spare knob or have any suggestions where I can find a replacement without spending significant money on a complete replacement unit.