Big ole hammer!
Just guessing, but does the center piece have studs that protrude the interior behind the trim inside?
If it does and the center piece comes off, then maybe you'll have access to screws at the top of the outer trim pieces that could be hiding behind the center trim.
Just throwin that out there to ya.
Just guessing, but does the center piece have studs that protrude the interior behind the trim inside?
If it does and the center piece comes off, then maybe you'll have access to screws at the top of the outer trim pieces that could be hiding behind the center trim.
Just throwin that out there to ya.