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Small black rectangular box with wire harness connectors

Axxess Technologies

Axxess AXGMLN-07 OnStar Retention Interface 2012-2016 GM 12V

SKU CH-0TEJ-HMVA4

Retains OnStar and OE Bluetooth while adding 12-volt 10-amp accessory power, RAP, NAV outputs and adjustable OnStar level for select 2012-2016 GM vehicles

  • TypeRadio Replacement Interfaces
  • Retains OnStar safety features with aftermarket stereo installation
  • Keeps factory Bluetooth for hands-free calls and audio
  • Provides 12-volt 10-amp accessory power for new head unit
  • Supplies navigation outputs including parking brake, reverse, mute and speed sense
  • Adjustable OnStar volume level plus retained balance and fade control

OnStar Retention for 2012-2016 GM Vehicles

The Axxess AXGMLN-07 interface allows installation of an aftermarket stereo while preserving factory OnStar safety and convenience features. It is designed for select General Motors vehicles produced between 2012 and 2016 that are equipped with amplified audio systems. The module also retains original Bluetooth hands-free operation and balance and fade controls.

Sustained Operation with 10-Amp Accessory Power

The unit supplies a continuous 12-volt 10-amp accessory power output to support the aftermarket radio during extended use. It maintains Retained Accessory Power (R.A.P.) so the stereo remains active after the ignition is turned off until a door opens. Adjustable OnStar volume levels ensure clear voice prompts without distortion during long drives.

Navigation Outputs and Updatable Firmware

The interface provides dedicated outputs for parking brake, reverse gear, mute and vehicle speed sense to support aftermarket navigation units. Firmware updates are possible using the AXUSB-CBL cable, which is sold separately. Buyers whose vehicles lack OnStar or factory amplification will not need this specific retention module.

Highlights

  • Retains OnStar safety features with aftermarket stereo installation
  • Keeps factory Bluetooth for hands-free calls and audio
  • Provides 12-volt 10-amp accessory power for new head unit
  • Supplies navigation outputs including parking brake, reverse, mute and speed sense
  • Adjustable OnStar volume level plus retained balance and fade control

Specifications

BrandAxxess
TypeRadio Replacement Interfaces

Questions about this item

How much heat or power draw should I expect from the 12-volt 10-amp accessory supply during all-day use?

The interface provides a 12-volt 10-amp accessory output; power draw depends on the connected aftermarket stereo and accessories, and the unit itself is designed for continuous vehicle operation without active cooling.

What existing vehicle wiring or features must be present for this interface to function?

The vehicle must be a select 2012-2016 GM model with factory OnStar, OE Bluetooth, and a retained accessory power (R.A.P.) circuit for the interface to retain those functions.

Will this interface work with my car's original amplified audio system and steering-wheel controls?

Yes, it is designed for amplified models and retains balance, fade, OnStar, OE Bluetooth, and R.A.P.; steering-wheel control retention depends on the specific vehicle and aftermarket radio combination.

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