Is that a Hyperdyne Vortex you're talking about? I basically am using an inexpensive RadioShack microphone. What are you trying to do with a 2-way radio ... have both your audience AND you be able to hear your voice amp, have your audience hear your voice amp and you be able to hear what they say back via a headset, or both?
Regardless, I have the Hyperdyne Vortex, and I can say I have wires running everywhere! Thank heavens I have enough costume components to cover it.