I'd like to use an H-250 Mic with a CB (Lincoln II+). Not sure if Rx audio is available on pin 4 of the mic cable. Also considering a speaker/earpiece limiter/fader if I need to use the speaker output. Any thoughts or experiences overall. Or guesses of what R values might be needed etc. What model is the mic connector called to fabricate the pinouts. I'm sure I'm not the first to invent this. Haven't found anybody reallly following through on it.