Axxess GMOS-04 User Manual

METRA. THE WORLD’S BEST KITS.™
© COPYRIGHT 2004-2011 METRA ELECTRONICS CORPORATION
1-800-221-0932
metraonline.com
INSTALLATION INSTRUCTIONS FOR PART INSTGMOS-04
REV. 12/21/11
• Cutting tool • Crimping tool • Tape • Connectors (butt-connectors, bell caps, etc.)
IGNITION TERMINALS
WIRE CUTTER
M3.5
M2.6
M3
M5
M4
ISO
6
2.5
1.5
TOOLS REQUIRED
GM amplified OnStar Class II Data Bus
Interface 2000-up
GMOS-04
GMOS-04 interface • 16-pin harness with stripped leads
18-pin harness to 12- and 24-pin GM harness with stripped leads
INTERFACE COMPONENTS
KIT FEATURES
APPLICATIONS
• Provides accessory (12-volt 10-amp)
• Retains R.A.P. (Retained Accessory Power)
• Used in amplified systems
• Retains chimes
• Provides NAV outputs (Parking Brake, Reverse, Mute, V.S.S.)
• ASWC harness included (ASWC not included)
• Retains OnStar/OE Bluetooth
• Adjustable volume for chimes and OnStar
• High level speaker input
• USB updatable
• Retains balance and fade
See inside front cover

Axxess GMOS-04 Specifications

General

Brand	Axxess
Model	GMOS-04
Category	Recording Equipment
Language	English

Summary

GMOS-04 Product Overview

Kit Features

Highlights key functionalities of the GMOS-04 interface, including accessory power, chime retention, and audio features.

Interface Components

Lists the physical parts included in the GMOS-04 kit, such as the interface and specific wiring harnesses.

Tools Required for Installation

Specifies the essential tools needed for a successful installation of the GMOS-04 interface.

Vehicle Compatibility

Wiring Connections

16-Pin Harness Connections

Detailed instructions for connecting the 16-pin harness to the aftermarket radio and vehicle systems.

Advanced Wiring Procedures

24-Pin Harness Connections

Instructions for connecting the 24-pin harness to the vehicle's factory wiring for power and ground.

Corvette Specific Relay Connection

Special wiring instructions involving a relay for 2005-up Corvette models.

Installation Finalization

Final Connection and Testing Procedure

Steps to plug in harnesses, reconnect the battery, and perform initial system testing.

Product Testing and Adjustment

Initial System Verification

Procedure to verify the GMOS-04 functions correctly with the aftermarket radio and vehicle features.

Volume Adjustments (Chime, Audio, OnStar)

Guides for adjusting chime, audio, and OnStar volume levels using potentiometers and buttons.

ASWC Harness Integration

ASWC Programming Notes by Vehicle

Specific wiring modifications required for programming the ASWC harness for various vehicle models.

Important Safety Warnings

Installation Precautions and Support

Crucial safety warnings regarding installation, potential system interference, and contact information for assistance.