Radio Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Micro-Pack 100 Series (LT GRY)
Pin	Wire Color	Circuit No.	Function
A1	PPL	1807	Class 2 Serial Data
A2-A7	-	-	Not Used
A8	TAN	201	Left Front Speaker Output (+)
A9	GRY	118	Left Front Speaker Output (-)
A10	LT BLU	115	Right Rear Speaker Output (-)
A11	DK BLU	46	Right Rear Speaker Output (+)
A12	BLK/WHT	151	Ground
B1	ORN	1740	Battery Positive Voltage
B2-B3	-	-	Not Used
B4	GRY	8	Instrument Panel Lamps Dimmer Switch Signal
B5	BLK	250	Ground
B6-B7	-	-	Not Used
B8	BRN	199	Left Rear Speaker Output (+)
B9	YEL	116	Left Rear Speaker Output (-)
B10	DK GRN	117	Right Front Speaker Output (-)
B11	LT GRN	200	Right Front Speaker Output (+)
B12	BRN	9	Park Lamp Supply Voltage