Metra Electronics AXSUB-GM4New

Metra Electronics AXSUB-GM4 Subwoofer Wiring Data Interface for Select 2019-2025 GM Vehicles

We are a Metra Electronics authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What’s Inside?

• • AXSUB-GM4 Interface
• • AXDSPX-GM4 vehicle T-harness
• • Bass Knob
• • Owner’s Manual

Clean Powerful Bass Upgrade

Upgrade your vehicle’s audio with a 2-channel non-fading 5V RMS output that delivers clean, powerful, and distortion-free bass. The fixed 234Hz low-pass filter ensures only deep bass reaches your subwoofer, enhancing sound quality while protecting other speakers. Designed for non-amplified vehicles, this interface seamlessly integrates with your factory system for an easy and hassle-free upgrade.

Easy Bass Control Upgrade

Take full control of your bass with the included dashboard knob and vehicle-specific harness, making adjustments quick and hassle-free. Installation is simple at the radio location, keeping wiring organized and accessible without reaching hidden areas. Plus, with Micro USB updateability, your system stays compatible with future vehicle upgrades and improved performance.