Metra - AXDIS-GMLN44 - Data Interface with SWC - GM 2008-2016

The Metra AXDIS-GMLN44 Data Interface with Steering Wheel Control is a vehicle-specific integration module designed for select General Motors vehicles from 2008 through 2016. This interface provides regulated accessory power and essential vehicle data signal outputs required for proper aftermarket head unit installation while retaining critical OEM features. Integrated steering wheel control retention allows continued use of factory audio buttons, and the module supports Retained Accessory Power (R.A.P.), balance/fade control, chimes, and navigation-related outputs. Engineered for professional installers, the AXDIS-GMLN44 simplifies OEM-to-aftermarket integration in GM vehicles by preserving system behavior and convenience features.

KEY BENEFITS

• Supplies stable 12 V accessory power output necessary for aftermarket head unit operation
• Retains factory steering wheel audio controls for seamless button functionality
• Preserves Retained Accessory Power (R.A.P.) behavior after radio replacement
• Maintains balance and fade control through the factory audio system
• Retains warning chimes and other vehicle audio cues
• Provides navigation-related outputs including parking brake, reverse, and vehicle speed sense
• Vehicle-specific design reduces wiring complexity and installation time
• Ideal for professional installations requiring OEM feature retention

TECHNICAL SPECIFICATIONS

• Weight: N/A
• Dimensions: N/A
• Application: Select GM vehicles 2008–2016
• Function: Data interface with steering wheel control retention
• Accessory Power Output: 12 V DC, regulated
• Retained Functions: Steering wheel controls, Retained Accessory Power, balance/fade, warning chimes
• Navigation Outputs: Parking brake sense, reverse sense, vehicle speed sense
• Steering Wheel Control Support: Yes (compatible with aftermarket SWC protocols)
• Compatibility: Works with compatible aftermarket head units
• Housing: Black interface module with vehicle-specific harness

INSTALLATION & COMPATIBILITY

The AXDIS-GMLN44 installs inline between the aftermarket head unit and the factory wiring harness in compatible GM vehicles from 2008 to 2016. It supplies the accessory power and vehicle data signals required for proper radio operation while retaining steering wheel control functions and other OEM system behaviors. The interface supports both amplified and non-amplified factory audio configurations, but installers should verify specific vehicle model compatibility and available dash space prior to installation. This module is intended for professional installations where preserving OEM convenience and communication features is required.

FAQS

• What is the AXDIS-GMLN44 interface designed for?
  AXDIS-GMLN44 is a GM-specific data interface that supports aftermarket radio installation while retaining essential factory data features and system communication.
• Why do GM vehicles need interfaces like AXDIS-GMLN44?
  Many GM platforms use digital signals instead of analog wiring. This interface converts those signals so the aftermarket radio powers on and functions correctly.
• Does AXDIS-GMLN44 retain warning chimes and alerts?
  Yes, it helps preserve factory warning chimes and alerts, maintaining safety notifications after replacing the factory radio.
• Is AXDIS-GMLN44 suitable for professional installations?
  Absolutely. Installers prefer GM-specific data interfaces to ensure reliable installs, reduced troubleshooting, and factory-like performance.