Metra GMOS-05 Instrucciones De Instalación página 2

• Connect the Orange wire to the illumination wire. (If the aftermarket radio does
not have an illumination wire, tape off and disregard the Orange wire).
• Connect the Violet wire to the right rear positive wire.
• Connect the Violet/Black wire to the right rear negative wire.
• Connect the Green wire to the left rear positive wire.
• Connect the Green/Black wire to the left rear negative wire.
Installing the GMOS-05
With the key in the off position:
• Connect the GMOS-05 harnesses into the interface.
• Connect the 16-pin harnesses with stripped leads into the interface.
• Connect the GMOS-05 harnesses into the vehicle.
• With all connections completed, reconnect the negative battery terminal.
Initializing the GMOS-05
Attention: If the GMOS-05 loses power for any reason, the following steps will
need to be performed again.
• Initialize the interface by turning the ignition on for 30 seconds, then turn the
ignition back off, then back on again.
Adjusting the GMOS-05
Chime Volume Adjustment
• With the vehicle on, shut the vehicle off and leave the keys in the ignition.
Open the driver's door and leave it open; chimes will be heard.
• Wait 10 seconds, and then with a small screwdriver, adjust the potentiometer
fully counterclockwise (all the way left). Turn clockwise to raise the chime
level, and counterclockwise to lower the chime level.
Note: The potentiometer is located on the side of the interface that has the
16-pin harness with stripped leads.
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GMOS-05
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• When the chime is at the desired level, remove the keys from the ignition; this
will lock the chime level in.
OnStar level adjustment:
• Press the OnStar button to activate it.
• While OnStar is speaking, press the VOLUME UP or VOLUME DOWN buttons on
the steering wheel to raise or lower the OnStar level.
• If the vehicle does not come equipped with steering wheel controls, find the
Black/Yellow wire on the 14-pin harness.
• While OnStar is speaking, tap the Black/Yellow wire to ground. Once the
OnStar level is set, it will stay at that level until the Black/Yellow wire is
tapped to ground again.
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 Metra at 1-800-221-0932 for assistance.
K P
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