yup, nothing.
No worries about being obvious, I'm open to all suggestions, but I've already tried, and the binding posts can't be unscrewed all the way out.
I'm having a real hard time getting at them. I've tried to make a hook out of a coat hanger and see if I can get enough force to push them out, but so far no go. They may be stuck in there.
I've run bare wire out of this speaker terminal for months with no problems, sounds great, so functionally they are fine.