PAC GM1A-RT, RadioPRO Advanced Radio Installation Adapter For GM Class 2 Vehicles. Retains Chimes OnStar and Factory Amplified Systems

RadioPRO Advanced has been engineered to save you time and seamlessly integrate into a vehicle’s data-bus system to retain features such as steering wheel controls, factory amplifier, audio fade, rear-seat entertainment system, and safety notifications. RadioPRO Advanced features improved sound quality of warning chimes through a provided speaker and direct USB connection for quick and easy product setting adjustments and firmware updates. It also saves you time installing a streamlined harness design, smaller housing, and easier adjustment of chimes and factory amplifier gain. Key Features OnStar retention Warning chimes through the sound system or external speaker Bose amplifier retention (Standard & Premium) Premium Bose amplifier adjustments (gain, bass, mid, treble) Real-time audio fade Rear-seat entertainment system retention USB updatable