I am getting a weird noise whenever I hit my open A string on my Fender jazz. It sounds like a clank, almost like the string is hitting a fret but it isn't a buzz noise. I raised my saddle as far as it will go and it is still producing the noise. I tried turning the truss rod in both directions, made it straight, gave it some relief, gave it more relief and I still get the noise. No other strings do it. However, when I fret the 1st fret on the A string the noise doesn't happen. Could this be an issue with the nut? a bridge issue? a fret leveling issue? I bought it used and noticed it when I bought it, I just figured I would work it out. The neck looked good and still does so I don't understand.