Radio Connector End Views

Radio (Base)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		AMP 173853 18-Way M 070 Series Multilock Plug 18P
Pin	Wire Color	Circuit No.	Function
1	L-BU	200	Right Front Speaker Output (+)
2	D-BU	46	Right Rear Speaker Output (+)
3	BN/WH	309	Right Park Lamp Supply Voltage
4	YE	43	Accessory Voltage
5	OG	540	Battery Positive Voltage
6	-	-	Not Used
7	GY	199	Right Front Speaker Output (+)
8	PU	201	Left Front Speaker Output (+)
9	BN	117	Right Front Speaker Output (-)
10	WH	115	Right Rear Speaker Output (-)
11	BK	450	Ground
11	L-GN/RD	230	Instrument Panel Lamps Dimming Control (w/Dimmer)
12-13	-	-	Not Used
14	BK	450	Ground
15-16	-	-	Not Used
17	D-GN	116	Left Rear Speaker Output (-)
18	L-GN	118	Left Front Speaker Output (-)

Radio (RDS)

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		ISO 16P REC (SMT-011114-04) 16-Way
Pin	Wire Color	Circuit No.	Function
1	D-BU	46	Right Rear Speaker Output (+)
2	WH	115	Right Rear Speaker Output (-)
3	L-BU	309	Right Park Lamp Supply Voltage
4	BN	117	Right Front Speaker Output (-)
5	PU	201	Left Front Speaker Output (+)
6	L-GN	118	Left Front Speaker Output (-)
7	GY	199	Right Front Speaker Output (+)
8	D-GN	116	Left Rear Speaker Output (-)
9-11	-	-	Not Used
12	OG	540	Battery Positive Voltage
13	-	-	Not Used
14	BK	450	Ground
15	YE	43	Accessory Voltage
16	BK	450	Ground