RGBRACKET Mounting Bracket for MUD Amplifier The MTX RGBRACKET is a custom bracket designed for use with MTX MUD Series amplifiers. The RGBRACKET allows a MUD amplifier to be mounted in the fairing of select Harley Davidson Road Glide motorcycles using existing bolt placement. The HRGBRACKET is compatible with Harley Davidson motorcycles 1998-2013 Road Glide and Road Glide Ultra models. Features: