PAC-AUDIO, Advanced LOC, AP4-GM81

AmpPRO Amplifier Integration Interface for Select 2023+ General Motors Vehicle Models with BOSE A2B Factory Amplified Systems. • Variable volume, fade, balance, bass, mid and treble audio settings • Front, rear, sub preamp outputs (5 volt RMS) • Customized OE bass, mid and treble center frequency selection • Retains warning chimes, navigation prompts, Bluetooth®, and telematic audio (if equipped) • Plug-and-Play installation • Sub level controller included • TOSLINK optical output provides a variable 2-channel digital audio output NOTE: The factory amplifier must be unplugged or removed when installing AP4-GM81.