I'm not looking for the dash cubby itself (don't have CD player), but it looks like there is a small trim piece that goes on the front of the cubby to prevent items from falling out of it? I am missing this piece. I can tell something goes there because there are three small tabs on the front of the cubby as well as little notches on the left and right sides. Does anyone know what this is called or have a part number? Mine must have fallen off.