Axxess AXDSPX-GL9 in select 2014-20 GM vehicles

Product details

Let's face it, your GM vehicle's fancy feature-filled radio doesn't sound that good, but you can't replace it because of all the good things it does. Axxess, a master producer of vehicle interface devices, has come out with this fully-tunable AXDSPX-GL9 digital sound processor that plugs into your factory radio and gives you the ability to add aftermarket amplifiers, transforming your vehicle's interior into the sweet-sounding music listening room you want.

Bluetooth® control

You make all your sound adjustments via the Bluetooth connection on your Android or Apple device using Metra's AXDSP-X app. Adjustment features include a 31-band graphic EQ with high-pass, low-pass, and bandpass filter options on each channel. Time delay allows you to align the sound of all your speakers in order to create the perfect sound stage centered on the driver or prime listener.

System options

The  AXDSPX-GL9 comes with a wired remote bass knob, so you can control the bass from the front, when one of the assignable output channels goes to a sub amp. Other connectors in the harness allow you to add even more amplifiers and create your own large custom sound system.

Product highlights:

• digital signal processor and T-harness
• GL9 harness fits select 2014-20 GM vehicles
  • plugs into factory radio
  • allows you to add aftermarket amplifiers then tune your system
• 6 inputs, 10 individually assignable output channels
• settings adjusted through tablet or smartphone running the AXDSP-X app
• each channel features:
  • 31-band graphic EQ
  • high-pass, low-pass, and bandpass filters
  • time delay (up to 10ms)
• bass knob included
• chime control for GMC vehicles
• retains OnStar® voice prompts
• 10 RCA outputs: front L and R, rear L and R, six assignable (up to 5 volts)