No not the bubbling sound. I know that noise. That is the AC. That's also normal.
This isn't comming from the air handling system, it's comming directly from the computer control panel below the radio. My thought, and my hope, is that that thing produces heat because it's a mini computer and it's got it's own little cooling fan to cool it off.
Does anyone know how to remove that unit so I can check to make sure eveything is in order and there are no loose parts?
<img src='http://img55.photobucket.com/albums/v168/zen_life/M3.jpg' border='0' alt='user posted image' />