[Elecraft] Open Mic Inside The Radio?

[-.-. --.-N3TU -.-. --.-]

Anyone have this problem with an open mic inside the radio? When I am on
52.795 mhz, I get a signal of s-3 and when I turn up the volume, it squeals.
I can actually speak through the bigger "grille" opening on top of the radio
and hear myself. I can't hear any weak signals on that frequency because it
is getting covered up. Any way to resolve this issue? 
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