If you're installing an amplifier kit in a 2006-newer Batwing fairing (Harman/Kardon / Harley-Davidson radio) with only one CB or XM module, you will need one of these This bracket acts as a dummy module to give the amplifier a level surface on top of the factory radio If you don't have any add on modules, or if you have both, you don't need this thing Mounts using stock mounting points and hardware Mimics a factory H/K radio module perfectly