RYSTAL
model(s)	wire color	pn number
CBR-1800	Audio	1
CBR-1700	Ground	2
	N/C	N/C
	Common	2
	PTT	4
	receive	3
model(s)	wire color	pn number
CB-523	Audio	1
	Ground	4
	N/C	N/C
	Common	2
	PTT	3
	receive	N/C