ok, here's the problem. i turn on the ac or heater and it has this very loud, very annoying chirping noise. as if it was a mutated over grown bird. is the fan getting caught on something in there? looks like i may have to take the whole dash out to see whats wrong. how do i pull the dash out with out breaking anything so i could check it out. when messin w/ that, i feel like i'm gonna break the darn dash..