[thekurgan]

Yes, agree, #7 is where the SIB mentioned a rubber pad of some kind. #11 seems plausible as a bad sound source. Mine made the same sound, but when I searched years ago, nobody else had it. I used some Krytox 205 grease and put a minimum amount on the raised lock "button", then cycled them a few times and it hasn't returned. I think the grease acts as a vibration absorber within that little cylinder where the button resides. May be worth a cheap shot to try before removing the panel. These parts are likely behind the plastic moisture guard, and the butyl tape is difficult to remove cleanly. Krytox I used as it doesn't dry out, it doesn't smell and it has an extreme temp rating.