I've tried everything I know how to do. I bought a new switch and it worked for a couple days. Then it stopped, so I bought another one. Nothing. Then I replaced the resistor, nothing. I tested the blower motor to the battery and it started up right away, so I'm assuming the motor itself is good. Then I was told there was a relay in the glove box, so I replaced that. Still nothing will make that thing work. Any ideas?