Metra - AXGLI-M - Mini Ground Loop Isolator - 2 Channel

The Metra AXGLI-M Mini Ground Loop Isolator is a compact 2-channel noise suppression device designed to eliminate unwanted audio interference in automotive sound systems. It is engineered to break ground loop paths that commonly introduce alternator whine, engine noise, or low-frequency hum into RCA signal lines. This passive isolator installs inline with the audio signal path and requires no external power, making it an efficient solution for both professional installers and enthusiasts troubleshooting noise issues. Its small footprint allows flexible placement behind dashboards, near amplifiers, or within tight signal-routing areas.

KEY BENEFITS

• Eliminates ground loop noise such as alternator whine and electrical hum
• Two-channel design supports left and right stereo RCA signals
• Passive operation requires no external power or remote turn-on connection
• Installs inline with RCA signal paths for fast and simple noise isolation
• Compact size allows installation in tight spaces behind dash or near amplifiers
• Universal compatibility with head units, processors, and amplifiers
• Reduces troubleshooting time by addressing common audio noise issues
• Helps preserve clean signal integrity in aftermarket audio systems

TECHNICAL SPECIFICATIONS

• Weight: 0.10 lb
• Dimensions: 2.50″ L × 1.50″ W × 1.00″ H
• Function: Ground loop isolator
• Channel Count: 2-channel (stereo)
• Connection Type: RCA signal isolation
• Power Requirement: Passive device, no external power required
• Application: Universal automotive audio noise suppression
• Housing: Compact black isolator module

INSTALLATION & COMPATIBILITY

The AXGLI-M installs inline between the RCA outputs of a head unit, signal processor, or factory integration module and the inputs of an amplifier. By isolating the signal ground between components, it effectively eliminates noise caused by ground potential differences. The module does not require power or configuration and can be mounted close to the noise source or near the amplifier for optimal results. It is compatible with virtually any aftermarket or OEM-integrated audio system using RCA signal connections.

FAQS

• What is the AXGLI-M interface used for?
  AXGLI-M is designed to integrate aftermarket radios into select GM vehicles while maintaining factory data functions and stable electrical communication.
• Why choose AXGLI-M instead of a universal harness?
  Vehicle-specific interfaces like AXGLI-M offer better compatibility, fewer wiring errors, and improved long-term reliability compared to universal solutions.
• Does AXGLI-M support factory amplifiers?
  In supported vehicles, it can integrate with factory amplified systems, ensuring clean audio signals and proper volume control with aftermarket radios.
• Is AXGLI-M recommended for full audio upgrades?
  Yes, it’s a solid foundation for system upgrades, making it easier to add amplifiers or speakers without compromising factory vehicle functions.