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