At a garage sale I bought a shure 515 bsm microphone. I didnt notice that the connector at the end of the cable has 5 pins, presumably a midi connector, instead of the standard 3 pin XLR connector. Can I purchase an adaptor that will change the 5 pin male connector to an XLR so I can use it with my other equipment. It's a nice mike and I would like to use it.