The C8 connector in this cute little radio is not very rugged and can break off. Unfortunately, I could not locate a replacement part, so I made this 3D model. After printing, remove the plastic support structure below the "nipple" and screw the part in. It will then hold the old broken C8 socket in place. If it's too tight, loosen the screw to avaid excessive tension on the plastic chassis. You don't want to break THAT ...