Where do you place a cup holder that you cann hide during a show? I got tired of puting my drinking cup on my lap while driving , so I made a insert panel that fits in the counsel and holds my mug. Made from scrap 3/4in plywood cut to fit the inside of the opening with hole the size of the mug and covered with materiel. Will not fall in all the way since the box is somewhat narrower towards the bottom and hold the panel in place.