Axxess AXGM-08 OnStar Class II Interface for GM Vehicles 2005-2006

Axxess AXGM-08 is a vehicle-specific radio replacement data interface for select 2005-2006 GM amplified Class II vehicles. It helps integrate an aftermarket radio while retaining supported GM functions such as accessory power, retained accessory power, warning chimes, OnStar/OE Bluetooth, and navigation-output wiring where supported.

At a Glance

• Provides accessory power (12-volt 10-amp)
• Retains R.A.P. retained accessory power
• Used in amplified systems
• Retains warning chimes, balance, and fade
• Provides NAV outputs for parking brake, reverse, mute, and speed sense
• Retains OnStar/OE Bluetooth where equipped
• Adjustable gain control for chimes and OnStar
• High-level speaker input
• USB updatable

System / Wiring Notes

• Designed for the listed vehicle applications only; verify RPO code, factory amplifier, OnStar equipment, and radio configuration before purchase
• Retained features depend on vehicle trim, factory audio system, factory radio equipment, and aftermarket radio support
• Steering wheel control retention requires the proper Axxess SWC interface when listed as sold separately
• Firmware update method and required cables should be verified in the current Axxess instructions

Exact Vehicle Compatibility

Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.

Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.

Installation Notes

• Confirm exact vehicle fitment, trim level, factory radio, RPO code where applicable, and factory audio system before installation
• Additional dash kit, antenna adapter, steering wheel control interface, camera adapter, or vehicle-specific harness may be required for a complete installation
• Use the current Axxess fit guide and installation instructions before wiring or programming the interface
• Professional installation is recommended for proper integration and retained-feature operation

What’s in the Box

• Axxess AXGM-08 data interface
• Vehicle-specific harnessing
• Installation components as supplied by Axxess
• Step-by-step instructions as supplied by Axxess

Technical Specifications

• Brand: Axxess
• Model: AXGM-08
• Product Type: Radio replacement data interface
• Application: select 2005-2006 GM amplified Class II vehicles
• Compatibility Type: Vehicle-specific
• Audio System Support: Amplified systems
• NAV Outputs: parking brake, reverse, mute, and speed sense
• Update Method: USB

Identifiers & Packaging

• MPN: AXGM-08
• UPC: 086429384914
• Sold As: Each
• Included Components: Interface, vehicle-specific harnessing, and installation components

Why Buy From MCOR Automotive

• Authorized retailer for the brands we sell
• Specialists in vehicle audio integration, radio replacement parts, and installation accessories
• 22+ years of professional automotive electronics experience
• Expert support for compatibility verification and proper setup