Axxess AXDSPX-GL9 DSP Interface for Select GM 2014-2020

Axxess AXDSPX-GL9 is an AXDSP-X digital signal processor data interface package for select GM models 2014-2020. It helps clean up factory-radio audio processing, provides tunable preamp outputs for aftermarket amplifiers, and supports retained factory audio functions where applicable.

At a Glance

• DSP data interface package for select GM models 2014-2020
• Designed for non-amplified systems
• Package includes the AXDSP-X interface and vehicle-specific harnessing
• 6 inputs and 10 individually assignable outputs
• Selectable 31-band graphic EQ or 5-band parametric EQ on each channel
• Selectable high-pass, low-pass, or bandpass filters
• Independent equalization and time delay on each output
• Clipping detection and limiting circuits
• Bass knob included
• Settings adjusted wirelessly through the AX-DSP-XL app
• Micro-B USB updatable
• Internal header port for adding interface modules
• Chime control for GM vehicles
• Retains OnStar voice prompts and factory chimes when equipped

System / Wiring Notes

• Designed for non-amplified systems
• Install location: at the factory radio
• Can be used with factory and aftermarket radios where the manufacturer supports the application
• Retained factory prompts, chimes, parking alerts, OnStar, Blue Link, UVO, or similar features depend on vehicle equipment and proper configuration
• DSP tuning must be completed in the AX-DSP-XL app for the vehicle and audio system

Exact Vehicle Compatibility

Find your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering.

Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.

Installation Notes

• Verify the vehicle is in the listed application range and has the required factory audio system before purchase
• Do not assume compatibility across similar vehicles, factory radios, RPO codes, or amplifier packages
• Confirm exact vehicle fitment, factory audio system, amplifier configuration, radio RPO code where applicable, and radio connector before purchase
• Additional installation parts may be required depending on the vehicle, factory equipment, and system design
• Programming, firmware updates, app setup, or DSP tuning may be required for proper operation
• Professional installation and tuning are recommended for best results
• Check the current Axxess vehicle fit guide and manufacturer instructions before installation

What’s in the Box

• AXDSP-X interface, vehicle-specific T-harness, bass knob, and manufacturer instructions

Technical Specifications

• Brand: Axxess
• Model: AXDSPX-GL9
• Product Type: DSP data interface with vehicle-specific harness
• Application: select GM models 2014-2020
• Compatibility Type: Vehicle-specific
• Factory System Requirement: Designed for non-amplified systems
• Install Location: at the factory radio
• DSP Platform: AXDSP-X
• Inputs: 6
• Outputs: 10 individually assignable
• EQ: 31-band graphic EQ or 5-band parametric EQ
• Filters: High-pass, low-pass, or bandpass
• Selectable Slope: 12, 24, 36, or 48 dB per octave
• Delay: Up to 10 ms per channel
• Tuning: Axxess AX-DSP-XL app
• Update Method: Micro-B USB
• Included Control: Bass knob

Identifiers & Packaging

• MPN: AXDSPX-GL9
• UPC: 086429386598
• Sold As: Each
• Included Components: AXDSP-X interface, vehicle-specific T-harness, bass knob, and manufacturer instructions

Why Buy From MCOR Automotive

• Authorized retailer for the brands we sell
• Specialists in vehicle audio integration, radio replacement parts, and installation accessories
• 22+ years of professional automotive electronics experience
• Expert support for compatibility verification and proper setup