Overview: The GMOS-LAN-04 is designed to retain the amplified
sound system, Onstar's emergency services function, and the warning chimes that
are normally lost when the OEM radio is removed and an aftermarket radio is
installed in select GM vehicles. It also provides a 12 volt accessory output
for proper aftermarket radio operation. In addition, the GMOS-LAN-04 provides a
mute, parking brake, VSS or speed sense, and a reverse output to make installing
an aftermarket navigation radio simpler and less time consuming.
Compatibility: The GMOS-LAN-04 is compatible with the following
- 2007-2010 Cobalt
- 2006-up HHR
- 2008-up Malibu
- 2007-2008 G5
- 2009 G6
- 2006-2009 Solstice
- 2006-2009 Aura
- 2006-2009 Sky
Volume Adjustment: The GMOS-LAN-04 interface features
potentiometer located on the 16 pin harness side of the module to adjust
the volume, including chime and audible turn signal indicator volume.
OEM Steering Wheel Control Compatible (optional): The
GMOS-LAN-04 features a right-angle 3.5mm connector that lets you keep your
GM vehicle's OEM steering wheel controls via the optional Axxess Steering
Wheel Control Interface (item number
Connections: The GMOS-LAN-04 consists of a single interface
with a 16-pin connector on one end and an 18-pin connector on the other end, along
with the corresponding harnesses. The 16-pin harness plugs into the interface and
is hardwired to your new radio's harness. The 18-pin harness plugs into the interface
and three OEM harnesses behind the radio. The 18-pin harness also has several leads
to hardwire to the new radio.
Installation Note: The GMOS-LAN-04 uses the existing factory
amp to send the audio from the OnStar, door chime and turn signal sound to the
left front speaker of your vehicle. So you will need to retain at least the front
channels of your factory amp to utilize this interface.
Optional RSE Retention Harness: The Metra GMRSAV (120GMRSAV,
sold separately) is an RSE retention harness designed to retain the rear seat
entertainment system in these select GM vehicles. The GMRSAV provides an
audio/video input to the factory overhead video screen from your new aftermarket
radio, and provides the audio/video output from the rear seat control panel to
the aftermarket head unit.
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