Axxess ANC-GMH2 - Audio accessory Metra - Free user manual and instructions
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| Product Type | GM Interface Module / Audio Accessory |
| Brand | Metra |
| Model | Axxess ANC-GMH2 |
| Compatibility | Select GM vehicles with LAN 29-bit data system (2006-2013) |
| Dimensions (Approx.) | 2.5 x 1.5 x 0.7 inches |
| Weight (Approx.) | 0.2 lbs (90 g) |
| Power Input | 12V DC from vehicle ignition or battery |
| Chime Retention | Preserves factory chimes and warning tones when using aftermarket radio |
| SWC Interface | Retains steering wheel audio controls |
| Output | Provides adjustable analog outputs for amplifier integration |
| Installation Type | Wired, plug-and-play harness with solderless connectors |
| Instruction Manual | Available in PDF format (6 pages) |
| Maintenance | Keep connectors clean; use dry cloth for exterior |
| Safety | Disconnect vehicle battery before installation |
| Spare Parts | No user-replaceable internal parts; contact Metra support for service |
| Repairability | Non-serviceable; replace unit if failure occurs |
| Additional Features | Compatible with OEM amplified systems, retains R.A.P. (Retained Accessory Power) |
Frequently Asked Questions - Axxess ANC-GMH2 Metra
What vehicles are compatible with the Axxess ANC-GMH2?
The ANC-GMH2 is designed for select GM vehicles using the LAN 29-bit data system, typically model years 2006-2013. Check the Metra website for a specific vehicle list.
Does the ANC-GMH2 retain factory chimes?
Yes, the module preserves door chimes, warning tones, and other audible alerts when installing an aftermarket radio.
Will my steering wheel audio controls still work?
Yes, the ANC-GMH2 supports steering wheel control retention, allowing you to use volume, track, and mode buttons with compatible aftermarket head units.
Is professional installation required?
While a knowledgeable DIYer can install it, we recommend professional installation to ensure proper wiring and avoid damage to the vehicle's data bus.
Can I use the ANC-GMH2 with an aftermarket amplifier?
Yes, the module provides adjustable analog outputs (front, rear, and subwoofer) for seamless integration with aftermarket amplifiers.
Does it support amplified factory speakers?
Yes, the ANC-GMH2 is compatible with factory amplified audio systems and can retain the OEM amplifier or bypass it as needed.
What is the power source for the module?
The ANC-GMH2 requires 12V DC power, usually tapped from the vehicle's ignition or battery circuit as described in the manual.
Will the module drain my car battery if left connected?
No, the ANC-GMH2 is designed to have minimal parasitic draw and enters a low-power state when the vehicle is off, as long as installed correctly.
How do I update the firmware on the ANC-GMH2?
The ANC-GMH2 typically does not require firmware updates; it is pre-programmed for GM vehicles. For any uncommon issues, consult Metra support.
What is the warranty for this product?
Metra offers a 1-year limited warranty against defects in materials and workmanship. Keep your receipt for warranty claims.
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Product information
Brand : Metra
Model : Axxess ANC-GMH2
Category : Audio accessory