So about 2 weeks ago I bought a Squier Vintage Modified Jazz Bass. When I bought it I got it set up and everything, but when I was testing it out after it was set up the input jack became loose. I told the tech and he fixed it, but 2 days ago it did it again, so I researched how to fix it on a jazz bass and it worked fine for a few days. Then it did it again. I think the tech cross threaded the bolt on to the jack. I just think its a piss poor place to put an input jack. Is it the jack itself or the bolt? Has anyone else had this problem and how would it need to be fixed? HELP ME PLEASE!!!