Hello, On my sx-750 I have one speaker terminal push switch where you insert the speaker wire missing. The little button you push to open and expose the hole where the speaker wire is gone. If you look down all I can see is a metal bottom. Is there a way to fix this or work around so I can use it to run 2 sets of speakers? I have 7 functional speaker wire pitons and this one. Any help/suggestions/comments appreciated. I don't know if I could find/reinstall another switch here. Would the speaker work if I just jammed a length of speaker wire lead into the hole and taped over it?? :scratch2: