I'm attempting to reupholser my '89 Bayliner, that was fitted with a '03 Mercury 125 Saltwater, and I assume the control unit came with it. I need to remove the control unit to get to the upholstered panel, but can't figure out how to disassemble the control unit handle (forward and reverse, trim) to get it removed from the panel to reupholster, any suggestions? Seems like there must be a retaining clip of some type???