PTT_Mic Gnd 7 nc nc na 7 Monitor Squelch 8 nc nc na 8 Audio_Out Fig 1 Fig 2 Fig 3 Fig 4 Fig 5 Ohming out the cable 8P8C - 6P6C UsingKeystone Jacksto make it easier to test cable. The Motorola mike did not work out because the wiring is complex. ...