We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small black rectangular box with multiple wire connectors

METRA

METRA AXGMLN-03 Data Interface 2006-2012

SKU CH-WJSS-4QCHN

Data interface for 2006-2012 GM vehicles provides accessory power, retains RAP and OnStar, and adds NAV outputs with high-level speaker input

  • TypeSignal Processors
  • Retains factory OnStar and Bluetooth features with dedicated interface
  • Provides 12-volt 10-amp accessory power for aftermarket equipment
  • Keeps retained accessory power active after key removal
  • Supplies navigation outputs including speed sense and reverse signal
  • Adjustable gain control balances chime and OnStar volume

GM Data Interface 2006-2012

The AXXESS AXGMLN-03 data interface enables aftermarket radio installation in select General Motors vehicles from 2006 to 2012. It retains factory features such as OnStar, OE Bluetooth, chimes and balance and fade controls. The module provides accessory power at 12 volts and 10 amps while preserving Retained Accessory Power. It is designed for non-amplified systems or when replacing an amplified system.

Thermals noise and power draw

The interface draws up to 10 amps at 12 volts to supply accessory power to the new head unit. No cooling fan or active thermal management is present, so operation is silent. Power consumption scales with the connected radio and retained features such as chimes and OnStar audio. The pre-wired AXSWC harness simplifies connection without adding electrical load.

Sustained load behaviour

Under continuous use the module maintains steady accessory power and NAV outputs including parking brake, reverse, mute and speed sense. Adjustable gain control keeps chime and OnStar volumes stable during long drives. USB updatable firmware allows future compatibility improvements without hardware changes. High-level speaker inputs handle extended signal passage without degradation.

Highlights

  • Retains factory OnStar and Bluetooth features with dedicated interface
  • Provides 12-volt 10-amp accessory power for aftermarket equipment
  • Keeps retained accessory power active after key removal
  • Supplies navigation outputs including speed sense and reverse signal
  • Adjustable gain control balances chime and OnStar volume

Specifications

TypeSignal Processors

Questions about this item

How do I connect the AXGMLN-03 to my factory speaker wires, and which step is most often missed?

Use the high-level speaker input wires on the interface harness; the step most often missed is adjusting the gain control for chimes and OnStar so they match the new radio volume.

What part of the AXGMLN-03 will need attention or replacement after extended use?

The unit has no user-serviceable parts; if the USB firmware updater stops recognising the device, the interface itself would need replacement.

What is the first limit reached when the AXGMLN-03 runs continuously at high volume?

The accessory power output is rated at 12-volt 10-amp; sustained loads beyond that will trip the internal protection first.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.