I'm playing a wedding in a couple of weeks and want to use my Alesis synth through the church's P.A. for organ sounds. The problem is there is only one XLR jack in front of the church which is being used for the vocalist's mike. Is there an adapter available to connect 2 XLR cables into one? I'm using a direct box to convert the 1/4" cable coming out of my synth to XLR cable. Thanks!