REGENCY
model(s)	wire color	connection
CB-27	Audio	Audio
CBM-27-6	Ground	Ground
CBM-27-12	N/C	N/C
	Common	receive
	PTT	PTT
(Hi-Z, Use an amplified mic only)	receive	N/C
model(s)	wire color	pin number
FORMULA/23	Audio	1
SPRINT/23	Ground	2
	N/C	N/C
	Common	3
	PTT	4
	receive	N/C
model(s)	wire color	connection
GT523	Audio	Audio
	Ground	sheld
	N/C	N/C
	Common	receive
	PTT	PTT
Isolate ground on stand mics	receive	N/C
model(s)	wire color	pin number
IMPERIAL (CB-253)	Audio	1
IMPERIAL II (CB-254)	Ground	4
RANGE GAIN II	N/C	N/C
ROMPER (A-3)	Common	2
	PTT	3
(Hi-Z, Use an amplified mic only)	receive	N/C
model(s)	wire color	connection
RANGE GAIN	Audio	audio
RANGER CB270	Ground	ground
	N/C	N/C
	Common	ground
	PTT	relay
(Hi-Z, Use an amplified mic only)	receive	N/C
model(s)	wire color	connection
MODEL 500	Audio	audio
	Ground	ground
	N/C	N/C
	Common	ground
	PTT	7V
(Hi-Z, Use an amplified mic only)	receive	speaker
model(s)	wire color	pin number
CR-142	Audio	1
CR-230	Ground	2
CR-185	N/C	N/C
CF-240	Common	2
SPRINT 23 II	PTT	4
	receive	3
model(s)	wire color	connection
CR-123	Audio	tip
	Ground	case
	N/C	N/C
	Common	case
	PTT	ring
	receive	N/C
model(s)	wire color	connection
CR-186	Audio	N/C
	Ground	Ground
	N/C	N/C
	Common	Ground
	PTT	PTT
	receive	violet
model(s)	wire color	pin number
CR-501	Audio	4
CR-701	Ground	2
	N/C	N/C
	Common	2
	PTT	3
	receive	5