In the past two weeks, i've felt a strange wobbly motion on the part of my bass where you plug the 1/4" cable into. The jack is inside of a metal 'cup', which is inside the body of the bass. Those of you with Fender Vintage '51 Precisions know what i'm talking about. Anyways, i'm worrying that it's getting progressively loose, and won't be good when it finally does get as far as it can go. Anyone have any advice on fixing the wobbly-factor or should I just take it to my resident Hot Licks to get looked at?