Radio Connector End Views

Radio - C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12110088 24-Way F Micro-Pack 100 Series (GRY)
Pin	Wire Color	Circuit No.	Function
A1	ORN	1044	Radio Class 2 Serial Data
A2-A5	-	-	Not Used
A6	PNK	314	Radio On Signal (w/o 9C1/9C3)
A7	DK BLU	1796	Steering Wheel Controls Signal (w/o 9C1/9C3)
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	1051	Ground
B1	ORN	2640	Battery Positive Voltage
B2	-	-	Not Used
B3	WHT	1487	Antenna Enable Signal
B4	GRY	8	Instrument Panel Lamp Supply Voltage 1
B5	BLK	1050	Ground
B6	PPL	2232	Amplifier Present Signal (Monte Carlo)
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	-	-	Not Used

Radio - C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064799 12-Way F Micro-Pack 100 Series (BLK)
Pin	Wire Color	Circuit No.	Function
A-G	-	-	Not Used
H	DK GRN/WHT	368	Remote Radio Right Audio Signal (U2K)
J	BRN/WHT	367	Remote Radio Left Audio Signal (U2K)
K	BLK/WHT	372	Audio Common (U2K)
L	BLK/WHT	372	Remote Radio Audio Output (-)
M	DK GRN/ WHT	368	Remote Radio Right Audio Signal