AXDSPX-HK4
INSTALLATION INSTRUCTIONS
AxxessInterfaces.com © COPYRIGHT 2025 METRA ELECTRONICS CORPORATION REV. 5/9/25 INSTAXDSPX-HK4
DSP Data Interface with Amplifier
Bypass Harness
Fits Select Hyundai/Kia Models 2013-2023
INTERFACE FEATURES
TOOLS & INSTALLATION ACCESSORIES REQUIRED
• Crimping tool and connectors, or solder gun,
solder, and heat shrink • Tape • Wire cutter
• Zip-ties • Tone generator
TABLE OF CONTENTS
Installation & Installation Options ........................2
Connections ............................................................3
Mobile App: Quick Setup ................................... 4-5
Specifications /Speaker Assignment QR code.....6
INTERFACE COMPONENTS
• AXDSP-X Interface
• AXBK-1 (Bass Knob)
• LD-DSP-HYKIA4 harness
• Amplifier bypass harness (integrated)
ATTENTION: With the key out of the ignition,
disconnect the negative battery terminal before
installing this product. Ensure that all installation
connections, especially the air bag indicator lights, are
plugged in before reconnecting the battery or cycling
the ignition to test this product.
NOTE: Refer also to the instructions included with the
aftermarket accessory before installing this device.
• Retains ability to work with S/PDIF
®
digitally controlled amplified
systems
• Selectable 31-band Graphic EQ or 5-band parametric EQ on each
channel with high pass, low pass, and bandpass filters
• 6 inputs and 10 individually assignable outputs
• Selectable slope (12, 24, 36, or 48db per octave)
• Selectable Graphic or Parametric EQ
• Independent equalization on each of the 10 outputs
• Each channel can be delayed independently up to 10 ms
• Clipping detection and limiting circuits
• Bass knob included
• Retains OE voice prompts (Blue Link
®
/Uvo
®
) if vehicle is equipped
• Settings adjusted wirelessly in the free AX-DSP-XL app available
for smartphones and tablets
• Read, write, and store configurations for future recall
• Password protect feature available in the app
• Micro “B” USB updatable
APPLICATIONS
Visit AxxessInterfaces.com for current application list
For Dash Disassembly Instructions, refer to
metraonline.com. Enter the year, make, and
model of the vehicle in the Vehicle Fit Guide
for Radio Install kits.
Download AX-DSP-XL App
iOS
®
12.1 or higherAndroid™ 9 or higher
