noises sound from the dashboard

Hello, I have an RX 300 (2001 47000 miles) and lately I hear noises emanating from the dashboard everytime the car is on. It sounds like when the CD Changer switches between CDs. I remove the cartridge form the player, but the sound still persist.

I am starting to believe that it has to do with the AC system and one of the dampers is failing. Does anyone experience something similar. I have not gone to the dealer yet because I wanted to see if this is a common failure.

Thanks

My car is doing the same thing. Let me know if you find anything on it.