Just had my car scanned for a different reason, but talking to my friend there, he said if I can access the back of the light I should get a anti moisture pack like they put in shoe boxes, and tape one of them to the door that opens to get in light, try to get one about 2 inch square. He done that to his old gtd and never had a problem since! Anyone tried this? He did tell me the name but I can't rmemeber