Audio Coupling Transformer C1 (UMS)

WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Audio Coupling Transformer C1 Connector End View (UMS)

Courtesy of GENERAL MOTORS CORP.

Connector Part Information

OEM: 30700-1121
Service: See Catalog
Description: 12-Way F HDAC64 DR (BK)

Terminal Part Information

Terminal: Not Serviced in Kit
Core/Insulation Crimp: N/A
Release Tool/Test Probe: N/A

Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	WH	-	Rear Audio Left Signal
2	BK	-	Rear Audio Common Signal
3	RD	-	Rear Audio Right Signal
4	RD	-	Remote Playback Device Right Audio Signal
5	BK	-	Remote Playback Device Audio Common Signal
6	WH	-	Remote Playback Device Left Audio Signal
7	BK	-	Ground
8	BARE	-	Drain Wire
9	BARE	-	Drain Wire
10	RD	-	Remote Playback Device Right Audio Signal
11	BK	-	Remote Playback Device Audio Common Signal
12	WH	-	Remote Playback Device Left Audio Signal