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To get a detailed description of each category and it's available options, to help you make the correct selection.
Retain Steering Wheel Controls
Keep your factory steering wheel controls with Metra's ASWC-1. Easy to install with an aftermarket radio, easy to program with our auto detect feature.
Replace Factory Radio
Remove that featureless factory radio and install an aftermarket radio with Axxess's radio replacement interfaces and harnesses.
Add Remote Start
Cut down in installation time with Axxess's remote start vehicle specific harnesses.
Add Cameras to Factory Radio
Stay aware of your surroundings and improve safety by adding cameras to your existing factory screen.
Add Amp to Factory Radio
Get the sound quality you're looking for by adding aftermarket amplifiers to your factory radio with Axxess's Add-n-amp option.
Device Connection
Stay safe and connected while driving by installing an Axxess connectivity interface and mobility products.
Digital Signal Processor
Upgrade your sound, keep your factory radio and retain your functions with our versatile digital signal processor.
Override Engine's STOP/START
Override Interface for Ford, Chrysler, Dodge, & Jeep®. Simple install to override or re-engage the stop engine feature!

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< Back AXSUB-GM4

AXSUB-GM4

GM 2019-2023 Add-A-Sub Interface

USA MSRP: $202.99 USD

This add-a-sub interface is installed at the radio location and features a 2-channel non-fading 5V RMS output, a fixed low pass frequency of 234Hz, and 250mA remote turn-on output. It includes a bass knob & vehicle-specific harness for easy installation and customization.

Interface Features:

  • 2 Channel non-fading 5V RMS output
  • Fixed low pass frequency of 234Hz
  • 250mA remote turn-on output
  • Designed for non-amplified vehicles
  • Bass knob & vehicle-specific harness included
  • Install done at radio location
  • Micro USB updateable

Visit AxxessInterfaces.com for more detailed information about the product and up-to-date vehicle specific applications

Chevrolet

  • Camaro 2019-2023 RPO IOR
  • Cheyenne 1500 2019-2021 RPOIOR
  • Colorado (New Style) 2019-2022 RPOIOR
  • Cruze 2019-2022
  • Equinox 2019-2023 RPO IOR
  • Malibu 2019-2022 RPO IOR
  • Silverado (classic) 2022-2022 RPO IOR
  • Silverado 2019-2021 RPO IOR
  • Sonic 2019-2022
  • Spark 2019-2022 RPO IOR
  • Traverse 2020-2023 RPO IOR

GMC

  • Canyon 2019-2022 RPO IOR
  • Sierra 2019-2021 RPO IOR
  • Terrain 2019-2022 RPO IOR

*Visit AxxessInterfaces.com for more detailed information about the product and up-to-date vehicle specific applications