I N S TA L L AT I O N I N S T R U C T I O N S
AXSUB-CH4
AxxessInterfaces.com © COPYRIGHT 2024 METRA ELECTRONICS CORPORATION REV. 3/5/24 AXSUB-CH4
INTERFACE FEATURES
CHRYSLER (Add a SUB) Interface
2007-2020
Visit AxxessInterfaces.com for more detailed informaon
about the product and up-to-date vehicle specic applicaons
INTERFACE COMPONENTS
• AXSUB-CH4 interface
• AXDSPX-CH4 vehicle T-harness (LD-DSP-CH4)
• Bass knob (LD-BASSKNOB)
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TOOLS REQUIRED
TABLE OF CONTENTS
Connections.................................................................2
Programming..............................................................3
Testing..........................................................................3
Specifications...............................................................3
Troubleshooting..........................................................4
www.MetraOnline.com
MetraOnline.com may be used to assist with
dash assembly instructions. Simply enter your
Year, Make, Model vehicle into the vehicle fit
guide and look for the Dash Kit Installation
Instructions.
ATTENTION: With the key out of the ignition,
disconnect the negative battery terminal before
installing this product. nsure 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 radio.
•
Can be used in amplified and non-amplified models
• Easy behind the radio installation with pre-wired harness
• Bass knob included for level control of subwoofer amp
• Micro-B USB updatable
• Crimping tool and connectors, or solder gun,
solder, and heat shrink • Tape • Wire cutter
• Zip ties • Multimeter
If the vehicle is equipped with Active noise
cancelation (ANC) microphones, they will
need to be bypassed. Please refer to www.
Axxessinterfaces.com for ANC bypass
harnesses offered for select
vehicles.