Hello, I have 3 Danelectro Longhorn basses. All but one of the basses buzzes like hell. Like really, really, really bad hum. Is there a simple fix? It seems to me like there must be a recurrent problem for these basses to buzz so loud. I am hoping I can send both of the buzzing basses off to someone i.e. Danelectro and they can fix this issue. I live in Atlanta, Ga. Any suggestions on where to get these basses fixed?