We're excited to announce the launch of the AmpPro4 AP4-GM71, a powerful amplifier integration interface designed specifically for select 2019 and newer General Motors vehicles equipped with BOSE® Ethernet audio systems.
The AP4-GM71 simplifies the installation of aftermarket amplifiers, allowing you to enhance your vehicle’s audio performance while preserving the factory radio’s original fit, finish, and functionality. It offers full control over volume, fade, balance, bass, mid, and treble settings, along with customizable center frequency selection for bass, mid, and treble, delivering a truly tailored listening experience.
Installation is seamless thanks to its plug-and-play design, and the interface retains all essential factory features such as warning chimes, navigation prompts, Bluetooth®, and telematics audio where equipped. It provides clean 5-volt RMS front, rear, and subwoofer preamp outputs, includes a sublevel controller for quick and easy bass adjustments, and supports an optional TOSLINK optical output (APA-TOS1, sold separately) for advanced audio system configurations.
With AmpPRO, you can elevate your in-vehicle sound system without compromising the integrity of your OEM setup—combining high-quality audio with OEM convenience.
