Metra - AXGMLN-10 - Data Interface - Fits Select GM Models 2016-2021

The Metra AXGMLN-10 Data Interface is a vehicle-specific integration module designed for select GM vehicles from 2016 to 2021. This interface supports aftermarket radio installations in non-amplified factory systems or in applications where the OEM amplifier is bypassed. It provides a regulated accessory power output and generates critical vehicle data signals required for proper radio operation. The AXGMLN-10 also retains key factory features such as warning chimes, balance and fade control, and factory connectivity functions, making it a reliable solution for professional OEM-to-aftermarket integrations.

KEY BENEFITS

• Provides a stable 12 V accessory power output for aftermarket head unit operation
• Generates data-based vehicle signals required for proper radio functionality
• Retains Retained Accessory Power (R.A.P.) behavior after radio replacement
• Maintains factory warning chimes with adjustable output level
• Preserves balance and fade control through the factory speaker system
• Supports retention of factory OnStar and OEM Bluetooth features where equipped
• Provides navigation-related outputs including parking brake, reverse, and speed sense
• Pre-wired for optional steering wheel control interface integration

TECHNICAL SPECIFICATIONS

• Weight: 0.61 lb
• Dimensions: 7.50″ L × 4.00″ W × 2.50″ H
• Application: Select GM vehicles 2016–2021
• Function: Data interface with accessory power and vehicle signal outputs
• Accessory Power Output: 12 V DC, 10 A
• Retained Functions: Warning chimes, balance, fade, Retained Accessory Power
• Navigation Outputs: Parking brake, reverse, speed sense
• Connectivity Retention: OEM Bluetooth and OnStar support (vehicle dependent)
• Backup Camera Support: Yes (vehicle dependent)
• Steering Wheel Control Support: Pre-wired (interface sold separately)
• Firmware Updates: Micro USB connection
• Housing: Black interface module with vehicle-specific harness

INSTALLATION & COMPATIBILITY

The AXGMLN-10 installs inline between the aftermarket head unit and the factory wiring harness in compatible GM vehicles from 2016 to 2021. It is intended for use with non-amplified factory systems or installations where the OEM amplifier is bypassed. The interface provides the necessary accessory power and vehicle data signals while retaining essential factory functions. Compatibility may vary by vehicle trim level and equipment, so proper fitment verification and space behind the dash should be confirmed prior to installation.

FAQS

• What does the AXGMLN-10 interface do?
  AXGMLN-10 is a data interface for select GM vehicles that allows aftermarket radio installation while maintaining factory power, warning chimes, and data-driven features.
• Which GM vehicles typically use AXGMLN-10?
  It supports specific GM platforms and model years with data-controlled electrical systems. Always verify compatibility to ensure proper functionality after installation.
• Does AXGMLN-10 support factory amplifiers?
  Yes, when properly configured, it can integrate with factory amplified systems, delivering clean audio signals to aftermarket radios without distortion or signal loss.
• Is AXGMLN-10 recommended for professional installs?
  Definitely. Using a GM-specific data interface reduces install time, avoids electrical issues, and ensures a factory-like experience—something trusted installers rely on.