Originally Posted by soaringcowman
hmmm, I'll test my again tomorrow when I bolt it to the car. But I just used the rear defrost button. Did you have the car turned on?
LOL! Yes, car was running during both test. Do me a favor and test for voltage at the leads on the back of the mirror glass and see what readings you're getting. I did this instead on the misting and freezer method, maybe I could be mistaken.