ROMAR
model(s) wire color pin number
CB-7000 Audio 1
  Ground 4
  N/C N/C
  Common 3
  PTT 2
  receive N/C
model(s) wire color pin number
ACT-1914 Audio 1
  Ground 2
  N/C N/C
  Common 2
  PTT 4
  receive 3