Can I ask?

I have a 92 and with the motor mirror minus the auto diming and the alarm lights.

My mirror dosen't have any problem as yet. motors operate at all directions and the mirror holds. HOWEVER, something is broken inside as I can hear small pieces of things rolling inside as I turn or go over something.

Any idea of what it will be? I think I better wait until it completely breakdown before risking to take it off!