Metra Electronics GMOS-04 User Manual
GM ONSTAR CLASS II DATA BUS INTERFACE
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GMOS-04
INSTALLATION INSTRUCTIONS
* READ IMPORTANT WARNING ON PAGE 1
BEFORE ATTEMPTING ANY INSTALLATION
THE GMOS-04 IS DESIGNED TO BE USED WITH VEHICLES THAT HAVE A FACTORY AMPLIFIED SYSTEM
INCLUDING THE BOSE AUDIO SYSTEMS. BESIDES
RETAINING THE ONSTAR SYSTEM, THE GMOS-04 WILL
ALSO RETAIN THE WARNING CHIMES THAT WILL BE
LOST WHEN THE FACTORY RADIO IS REMOVED. THE
GMOS-04 WILL ALSO PROVIDE A 12 VOLT SWITCHED
WIRE FOR PROPER RADIO OPERATION. THE GMOS-04
NOW PROVIDES MUTE, PARKING BRAKE,VSS OR
SPEED SENSE, AND A REVERSE OUTPUT TO MAKE
INSTALLING AN AFTERMARKET NAVIGATIONAL RADIO
SIMPLER AND LESS TIME CONSUMING.
• SEE APPLIC
ATIONS LIST INSIDE •
TOOLS REQUIRED FOR INSTALLATION
• Cutting Tool • Tape • Crimping Tool
• Connectors (ie: butt-connectors, bell caps, etc.)
REV. 03/19//07 INSTGMOS-04
1-800-221-0932
©Copyright 2004-2007 Metra Electronics Corporatio
www.metraonline.co
GMOS-04
* 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 CONSUL
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.
T A TECHNICIANWHO DOES HAVE
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