I purchased a dash pad from a company called Sun-Tek in southern California. When I used it the dash turned yellow. Mike and Carla, at Sun-Tek, said this is normal and that if I want to get rid of the yellowing I should remove the pad. Since I bought the pad to protect the dash from the sun removing it sounds goofy to me and anything but normal. Does anyone know why their dash pad would turn my dash yellow.?