I want to try a simple homebrew project of building a microphone switch box so that I can run a single boom mic into two different radios. It's all simple straight thru wiring and 4-pin XLR chassis mount connectors. I need a rotary switch that will take a 4 conductor input and switch it to either A or B output. My question is what is the correct terminology of the switch? Would it be a 4 conductor 2 position rotary switch? Also where would be a good place to purchase it? Mouser? Next, should I be concerned about RF if I use a plastic box or should I use an aluminum box? Any ideas or tips would be much appreciated!