Metra Electronics GMOS-06

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Rev. 06-08-09 INSTGMOS-06

CADILLAC ONSTAR CLASS II

DATA BUS INTERFACE

1-800-221-0932 www.axxessinterface.com

GMOS-06

INSTALLATION INSTRUCTIONS

The GMOS-06 is designed to be used in Cadillacs equipped

with Onstar and amplified system. It will retain the warning

chimes that are lost when the factory radio is removed. The

GMOS-06 also provides a 12-volt switched accessory output

along with Mute, Parking Brake, Speed Sense (VSS), and

Reverse outputs for the installation of an aftermarket

navigation radio.

1-800-221-0932 www.axxessinterface.com

* IMPORTANT WARNING

THIS PRODUCT INCLUDES INSTRUCTIONS FOR INSTALLATION WHICH

MUST BE CAREFULLY FOLLOWED. THE INSTRUCTIONS ARE WORDED

IN SUCH A MANNER TO ASSUME THAT THE INSTALLER IS CAPABLE

OF COMPLETING THESE TYPE OF ELECTRONIC INSTALLATIONS. IF YOU

ARE UNCLEAR AS TO WHAT YOU ARE INSTRUCTED TO DO OR BELIEVE

THAT YOU DO NOT UNDERSTAND THE INSTRUCTIONS SO AS TO

PROPERLY AND SAFELY COMPLETE THE INSTALLATION YOU SHOULD

CONSULT A TECHNICIAN WHO DOES HAVE THIS KNOWLEDGE AND

UNDERSTANDING. FAILURE TO FOLLOW THESE INSTRUCTIONS

CAREFULLY AND TO INSTALL THE INTERFACE AS DESCRIBED COULD

CAUSE HARM TO THE VEHICLE OR TO SAFETY SYSTEMS ON THE

VEHICLE. INTERFERENCE WITH CERTAIN SAFETY SYSTEMS COULD

CAUSE HARM TO PERSONS AS WELL. IF YOU HAVE ANY QUESTIONS

IN THIS REGARD PLEASE CALL THE HELP LINE OR THE METRA AT

1-800-221-0932 FOR ASSISTANCE.

GMOS06 GMOS06

* READ IMPORTANT WARNING ON PAGE 1

BEFORE ATTEMPTING ANY INSTALLATION

INTERFACE COMPONENTS

• GMOS-06

• 14 pin harness with RCA’s

• 16 pin harness to 32 pin Cadillac harness

APPLICATIONS

• Cadillac Deville 1999-2005

• Cadillac Eldorado 1999-2002

• Cadillac Seville 1999-2004

• Cadillac Catera 1997-2001*

* NO

TE: Navigation outputs not available

for these vehicles.

NOWLEDGE IS

OWER

Enhance your installation and fabrication skills by

enrolling in the most recognized and respected

mobile electronics school in our industry.

Log onto www.installerinstitute.com or call

800-354-6782 for more information and take

steps toward a better tomorrow.

Need help?

Do you have a question about the Metra Electronics GMOS-06 and is the answer not in the manual?

Summary

GMOS-06 Installation Instructions

Applications

Lists Cadillac models compatible with the GMOS-06 interface.

Interface Components

Details the specific parts included in the GMOS-06 installation kit.

Important Warning

Installation Preparation

Tools Required for Installation

Lists the necessary tools for performing the installation.

Harness Preparation: 14-Pin Connections

Details wiring connections for the 14-pin harness for audio and navigation.

Wiring and Installation Steps

16-Pin Harness Connections

Details wiring connections for the 16-pin harness.

32-Pin Harness Connections

Details wiring connections for the 32-pin harness.

Installing the GMOS-06

Provides steps for connecting the GMOS-06 into the vehicle's wiring.

Testing the GMOS-06

Instructions for verifying the proper operation of the installed GMOS-06.

Audio Level Adjustments

Onstar Level Adjustment

Procedure for adjusting the Onstar volume level using the interface.

Audio Level Adjustment

Procedure for adjusting audio input level to prevent distortion.