Metra Electronics INST-GMOS05 User manual

GM ONSTAR CLASS II DATA BUS INTERFACE

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

GMOS-05

INSTALLATION INSTRUCTIONS

The GMOS-05 is designed to be used in Onstar equipped vehicles

with the “Dock and Lock” style harness, the radio harness that

stays mounted in the dash when the radio is removed. The radio

itself is held in by two spring loaded clips, one on each side.

Besides retaining Onstar, the GMOS-05 retains the warning chimes

thatwill be lost when the factoryradio is removed. The GMOS-05

will also provide a 12 volt switched accessory wire for proper radio

operation.

*Note: This interface will also work in vehicles listed belowthat are

not equipped with Onstar

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

*IMPORTANT WARNING

THIS PRODUCT INCLUDES INSTRUCTIONS FOR INSTALLATION WHICH

MUST BE CAREFULLY FOLLOWED. THE INSTRUCTIONS ARE WORDED

IN SUCH AMANNER 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

CONSULTA 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.

INST-GMOS05 INST-GMOS05

*READ IMPORTANT WARNING ON PAGE 1

BEFORE ATTEMPTING ANY INSTALLATION

INTERFACE COMPONENTS

•GMOS-05

•10 pin harness with stripped leads

•12 pin harness to 32 pin GM harness with

stripped leads

APPLICATIONS

•Buick Le Sabre 2000-2005

•Oldsmobile Aurora 2001-2003

• Pontiac Bonneville 2000-2005

**N

:This interface will NOT

work to retain factory amplifiers.

INSTALLING THE GMOS-05

1. With all connections completed to the aftermarket radio, plug the 32 pin

harness into the vehicles wiring harness.

*Note: Some minor modifications may be necessary to the sub dash cavity

to accommodate the GMOS-05.

2. Cycle the key by turning the ignition on then back off, then on again to

test the radio.

TESTING THE GMOS-05

1. Turn the ignition on if not already, and then turn the radio on to verify that

the radio works. Check the balance and fader control of the radio for

proper operation.

2. Push the Onstar button (if so equipped) to verify Onstar is working properly.

The radio will shut off and Onstar will be heard through the front speakers.

Turn off Onstar and the radio will turn back on.

INST-GMOS05

TOOLS REQUIRED FOR INSTALLATION

• Cutting Tool • Tape • Crimping Tool

• Connectors (ie: butt-connectors, bell caps, etc.)

WIRING UP THE GMOS-05

* Important: Before beginning any of the following, disconnect the negative

battery terminal to prevent accidental short circuit.

**Note: The ignition power source of most factory GM radios keep the radio on

until one of the doors is opened. This is called the R.A.P. (retained accessory

power). The GMOS-05 is designed to retain this feature.

CONNECTIONS TO BE MADE ON THE

10 PIN HARNESS:

1. Connect the white wire to the radio’s left front positive speaker output.

2. Connect the white/black wire to the radio’s left front negative speaker output.

3. Connect the gray wire to the radio’s right front positive speaker output.

4. Connect the gray/black to the radio’s right front negative speaker output.

5. Connect the red wire to the radio’s 12 volt accessory or switched wire.

• When completed, plug the 10 pin harness into the GMOS-05.

CONNECTIONS TO BE MADE ON THE

32 PIN GM HARNESS:

1. Connect the yellow wire to the radio’s 12 volt battery or memory wire.

2. Connect the blue wire to the radio’s antenna turn on wire.

3. Connect the orange wire to the radio’s illumination wire (if wire is not

present, tape wire off).

4. Connect the black wire to the radio’s ground wire.

5. Connect the green wire to the radio’s left rear positive speaker output.

6. Connect the green/black wire to the radio’s left rear negative speaker output.

7. Connect the purple wire to the radio’s right rear positive speaker output.

8. Connect the purple/black wire to the radio’s right rear negative speaker

output.

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