SHARP
model(s)	wire color	pin number
CB-700	Audio	1
CB-800	Ground	4
CB-2260	N/C	N/C
CB-2460	Common	3
CB-750A	PTT	2
CB-800A	receive	N/C
CB-4370
CB-2170
CB-5470
model(s)	wire color	connection
CBT-58	Audio	audio
CB-500 UB	Ground	ground
CB-550 UB	N/C	N/C
	Common	ground
	PTT	relay
	receive	N/C