Hello, I have a 1968 Fender Telecaster, and the input jack and the casing around it is very loose and spins around. This doesn't really affect the sound but it is quite annoying that it is not staying. I have tried to tighten it with my hands and that works temporarily but I don't know what to do. A wrench and things of that sort do not fit in it at all. Anyone have suggestions because I really don't want to take this to a shop just for that. Thanks