there are many cable types and adapters out there. Some from Radio Shack. I have a couple of Radio Shack branded Shure mics from x number of years ago and they have XLR on the mic end and 1/4" phone on the other, rather than XLR on both ends as with most mic cables. The XLR to 1/4" phone adapters seem to add a db loss, at least to my ears, probably due to impedance mismatches, so I don't use them even though it is all supposed to work. Perhaps, from Radio Shack or your favorite parts supplier, get XLR to 1/4" phone plug cables and buy 1/4" to mini-phone adapters, i.e. 1/4" phone to 1/8" (3.5 mm) phone. This would eliminate one conversion point, which would be good for loss and may help the impedance problems I have run into with the XLR -> 1/4" phone adapters.
The river keeps a talkin'