Does anyone know the wiring for this mic? I have one that was set up for my RCI 2950 but the plug got ripped off. I re connected pins 1-4 (braid, white, brown, Green) and put in a brand new 9v. I can transmit just fine but had no echo and I know it used to work. Not sure if it had anything to do with the fact that I left the red wire from the mic unattached because the other 2 pins (5&6)are the channel buttons. Thanks