The gf's car started making a fast, constant clicking noise from around the glove box whenever the car is running. The ONLY way it stops is flipping it over to recirculate, otherwise it is always making the noise. I'm assuming its the fresh air door actuator, but can someone confirm? Or for that matter, explain how to replace it? I've had the dash apart a few times lately swapping gauge clusters since those break all the time too, dunno if that could have caused it.