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SIR-GM1 Installation Guide
Congratulations on your purchase of the SIR-GM1– the GM
Compatible SIRIUS Satellite Radio Tuner!
Your SIR-GM1 is designed to be added to select vehicles that support Satellite
Radio operation. Your tuner is designed to replace the factory satellite tuner in
your GM vehicle. It is also compatible with systems that do not have the factory
satellite tuner installed.
Compatibility
The SIR-GM1 is designed to be
compatible with select headunits from
2003 ~ 2006 in select vehicles that
operate on the Class-2 Bus. Please
consult the included compatibility
listing.
Compatible Headunit Types:
• CD only Headunits*
• CD + Cassette Headunits*
• 6-CD changer Headunits*
• Touch Screen Monitor Headunits
• Non-Touch Screen Monitor
Headunits
*Note that the units must have a
“BAND” button to access SIRIUS audio
modes.
In addition, the SIR-GM1 is compatible
with most additional factory audio
accessories that might be included,
such as:
• Rear Seat Audio Control Center
• Rear Seat Entertainment (DVD/
Monitor) System
• Heads up display (HUD)
• Steering wheel controls
Note that the SIR-GM1 is not compatible with the factory satellite
radio antenna that might be installed in the vehicle. You must install
a SIRIUS compatible antenna such as the one included with this
product.
Features
The SIR-GM1 is designed to emulate
many of the factory SDAR (Satellite
Digital Audio Radio) commands found in
your vehicle.
• Channel Tune (Up and Down)
• Fast Tune (Up and Down)
• Category Search (Up and Down)
• Category Tune (Tune within a
category)
• 12 presets (6 for each band)
• Preset Scan (UP)
Note about features listed; Each GM
radio type operates differently, so
consult the vehicle owners manual for
proper operation methods.
Headunit Display Capability
When the SIR-GM1 is installed, it has
the capability to show the following
information on the headunit display.
• Channel Number
• Channel Name
• Category Name
• Artist Name**
• Song Title Name**
**Number of characters displayed varies
by headunit type (8 ~16 Characters).
Text Scrolling and/or Paging is not
supported with the SIR-GM.
Note: Some GM headunits will display “XM1” or “XM2” as the
display source. This information is hard coded in the headunit
design and can not be changed.