Good luck on this one.  Had the same problem with the table in my Carat.  Had
to remove the rear seat, rear facing seats, rug, pads under rugs, and then the
whole wall to get to that little catch.  I removed it and put in a strong
cabinet magnet to hold the table down so I wouldn't have to go through that
again.  I think velcro is a better idea though.
Don't try to force it 'cause you'll only break the wall and then much
profanity.
Ken Wilford
John 3:16