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I'd first try Phil or MW's idea. When I relocated my console, I glassed in a piece of treated 2x4 under the floor. It ain't gonna hold unless the screws have something to hold. As uncledeck stated it would be probably be in your best interest down the road if the console was not glass into the floor.
On the Gorilla glue idea, if you choose that method. Remember tape well outside your hole as that stuff will expand and stick to anything.