AP4-GM71

The PAC AP4-GM71 AmpPRO 4 is a premium amplifier integration interface designed specifically for select 2019 and newer General Motors vehicles equipped with Bose® Ethernet audio systems. Engineered to simplify aftermarket amplifier installations, the AP4-GM71 allows you to dramatically upgrade sound quality while retaining the factory radio, OEM controls, warning chimes, Bluetooth®, navigation prompts, and telematics functionality.

Built with advanced AmpPRO technology, the AP4-GM71 provides six channels of high-quality 5-volt RMS preamp outputs with retained fade, balance, bass, midrange, and treble controls directly from the factory radio. The interface also includes a TOSLINK optical digital output for advanced DSP and premium digital audio system integration.

Key Features:

• Designed for select 2019+ GM vehicles with Bose® Ethernet audio
• Retains factory radio and OEM vehicle functionality
• 6-channel 5V RMS preamp outputs
• Retains fade, balance, bass, mid, and treble controls
• Includes TOSLINK optical digital audio output
• Retains warning chimes and telematics audio
• Retains Bluetooth® and navigation prompts
• Plug-and-play installation design
• Remote amplifier turn-on output included
• Adjustable subwoofer level control included
• Compatible with aftermarket amplifiers and DSP systems

Audio Integration Features:

• Variable 5V RMS RCA outputs
• Front, rear, and subwoofer outputs
• Variable 2-channel optical digital output
• Adjustable minimum volume and chime volume
• OEM audio retention with upgraded amplifier capability
• Data-controlled remote amplifier output

Vehicle Compatibility:

• Select 2019+ Chevrolet vehicles
• Select 2019+ GMC vehicles
• Select 2019+ Cadillac vehicles
• Select 2019+ Buick vehicles