Axxess AXSUB-GM1, Add a Sub Datat Interface - For Select GM Models 2013-2020

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Axxess AXSUB-GM1 Add-A-Sub Data Interface for Select GM Vehicles Enhance your factory audio system with deeper, more dynamic bass using the Axxess AXSUB-GM1 Add-A-Sub Data Interfac e. Designed for select 2006-2009 GM vehicles with non-amplified factory audio systems, this vehicle-specific interface provides a simple plug-and-play solution for adding an aftermarket subwoofer and amplifier while retaining the factory radio and its original functionality. The AXSUB-GM1 utilizes Axxess Add-A-Sub™ technology to extract a dedicated low-frequency signal from the factory audio system without requiring factory radio replacement. It features a 2-channel non-fading 5V RMS output with a fixed 234Hz low-pass crossover, delivering a clean bass signal for an aftermarket subwoofer amplifier while maintaining the performance of the factory speakers. Installation is fast and straightforward with the included vehicle-specific T-harness, allowing the interface to connect directly at the radio location without cutting or modifying factory wiring. A dash-mountable bass level control knob is included, giving drivers convenient control over subwoofer output levels to match their listening preferences. The AXSUB-GM1 also provides a 250mA remote turn-on output for activating an aftermarket amplifier and features Micro-B USB update capability for future firmware updates and continued compatibility with supported applications. Before purchasing, vehicle compatibility should always be verified. The AXSUB-GM1 is designed for select 2006-2009 Chevrolet, GMC, Buick, Cadillac, Hummer, Pontiac, Saab, and Saturn vehicles equipped with compatible non-amplified factory audio systems. Whether you're adding a powered subwoofer, improving factory bass response, or building a complete aftermarket audio system, the Axxess AXSUB-GM1 provides a clean, reliable, and professional solution for integrating aftermarket bass while retaining the factory radio. Key Features Vehicle-specific GM Add-A-Sub™ interface Designed for select 2006-2009 GM vehicles Designed for non-amplified factory audio systems Adds an aftermarket subwoofer while retaining the factory radio 2-channel non-fading 5V RMS output Fixed 234Hz low-pass crossover 250mA remote turn-on output Includes dash-mountable bass level control knob Vehicle-specific plug-and-play T-harness included Installation performed at the radio location Micro-B USB update capability Compatible with select Chevrolet, GMC, Buick, Cadillac, Hummer, Pontiac, Saab, and Saturn vehicles Maintains factory radio operation while adding aftermarket bass Includes: AXSUB-GM1 interface Vehicle-specific T-harness Bass control knob Ideal for factory audio system bass upgrades Show more