converting and unbalanced in into a balanced input

Hi All,

i own a behringer v amp pro guitar processor that, for perfectly reasonable reasons, only has unbalanced 1/4" inputs. I have a guitar that has BALANCED output (XLR or TRS) and would LOVE to keep the noise-free balanced signal. Can anyone suggest a way to modify my unit and add to or change the existing TS 1/4" to a TRS input? Wacky idea but I figured that this would be the forum to ask.

Thanks For ANY Suggestions,

Ami Margolis