INSTALLATION INSTRUCTIONS FOR PART GMOS-LAN-07
METRA. The World’s best kits.
™
metraonline.com
1-800-221-0932
© COPYRIGHT 2004-2013 METRA ELECTRONICS CORPORATION
REV
. 12/11/2013 INSTGMOS-LAN-07
K
NOWLEDGE IS
P
OWER
E
nhance 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.
Metra recommends MECP
certified technicians
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.
audio level adjustment
1) Start your vehicle and turn on the radio having audio playing.
2) Turn your aftermarket radio’s volume up ¾ of the way.
3) With a small screwdriver adjust the potentiometer clockwise to raise the audio level and
counterclockwise to lower the audio level.
4) Once at desired level your audio adjustment is complete.
onStar level adjustment
To adjust the OnStar volume level find the
Black/Yellow
wire on the 16-pin harness. Push the
Blue
OnStar button, while the voice is speaking tap the
Black/Yellow
wire to ground.
There are 4 volume settings for OnStar; once the 4th setting is reached and the
Black/Yellow
wire
is tapped to ground it will automatically go back to the first volume setting. Once the volume is set it
will stay at that volume until the
Black/Yellow
wire is tapped to ground again. This can be set during
installation and then left alone. If user adjustment is desired, the customer may also tap volume “up”
or “down” on the steering wheel (if equipped) to adjust the OnStar level.
additional 12-pin harness (aSWC-1 harness)
This 12-pin harness is to be used in conjunction with the ASWC-1 (not included). Please refer to
ASWC-1 instructions for programming.
Testing the GMOS-LAN-07
