I own a Fender MIA Jazz that I've had for about nine months, and it has played like a dream so far. But recently it has been making a buzzing sound when I play an open E or A on the first two strings. The source of the buzz is somewhere near the headstock. If I put a finger over the string right near where it is wound up, then the buzz is muted. But despite knowing the location of the buzz, I have no idea how it got like this, and more importantly, how to get rid of it. It doesn't seem to get picked up through my amp so it isn't an enormous/immediate concern, but it is a new noise that doesn't sound very healthy for my bass. So if anyone has any guesses/advice/etc as to what this is or what I could do about it, I would really appreciate it a lot. Thanks guys!