There's this wierd 5" diameter circular clear plastic thing that's in
the bulkhead between the cabin and the cockpit under the depth finder.
I put my finger and thumb in the indentations and unscrew it and it
comes out, but it unscrews from the outside!!! Which means some dude
can come onto the boat, unscrew it and stick his arm (or whatever)
into the cabin. What the hell is this thing!!!