Markbass LMII input jack issue

[lunarpollen]

My amp is cutting out intermittently, and I discovered by jiggling the cable plug that it has something to do with the input jack (I ruled out the instrument cable by trying different cables). My warranty is expired and the input jack isn't really user-servicable on the LMII, but I'm guessing it's just a very minor issue, at worst it would need the jack replaced, but maybe there's just a broken solder joint or a cable contact that needs to be bent, etc. What would be my best way of getting this fixed? Taking it to Guitar Center?

[KJung]

I'd PM Peter Murray (that's his TB name also). He's the NA sales rep and will let you know what to do.