This harness allows you to install a Harman Kardon subwoofer system into vehicles originally equipped with a Fender audio setup, without cutting or splicing the factory wiring. It adapts the connectors directly, keeping the system clean and fully reversible.
 
Features
Plug and play adaptation from Harman Kardon sub harness to Fender sub connector
Maintains factory signal paths and impedance
Uses OEM-style connectors and correct automotive wire gauge
No modification to the original audio wiring
 
Fitment
Compatible with vehicles equipped with an OEM Harman Kardon audio system
Works with vehicles that have the Fender amplifier and factory subwoofer wiring
Not intended for systems without an existing subwoofer channel or amplifier output
 
Why Use This Harness
When upgrading or swapping factory audio systems, the Harman Kardon and Fender subwoofer connectors differ in pin layout and wiring logic. This harness bridges those differences so your sub operates properly, without triggering faults or requiring permanent wiring changes.
 
Notes
Always verify both connector types before installation
Ensure connectors are fully seated to prevent signal loss
This harness does not alter audio signal or frequency response, it only adapts the connector format