AmpPRO simplifies the installation of upgraded amplifiers in data-bus-controlled amplified sound systems. With AmpPRO, you can improve audio performance while keeping an original radio’s fit, finish, and features. COMPATIBILITY: This product is compatible with data-bus-controlled amplified systems only. To identify these systems, look for logos on door speakers, tweeters, dash speakers, or the subwoofer to confirm if the vehicle has a compatible amplified system: Alpine, Beats, or Harman Kardon. Vehicle manufacturers do not always brand compatible systems. Unbranded amplified systems are generally identified by locating a center channel speaker or subwoofer. BENEFITS: Simplifies amplifier installation Prevents the need for summing and DSP devices Provides factory sound system upgrade solution FEATURES: It can be used to upgrade the entire sound system or just part of it thanks to the retention of the original amplifier Enables the addition of a subwoofer system to the original sound system Variable volume, fade, balance, bass, mid and treble audio settings Front, rear, sub preamp outputs (5 volt RMS) Provides flat audio output for a solid audio foundation Customized OE bass, mid and treble center frequency selection Retains uConnect, Bluetooth audio, and all warning chimes Plug & play installation Sublevel controller Optional TOSLINK optical output (APA-TOS1 sold separately) INCLUDES: AmpPRO module 22-pin harness (Dual MS-CAN) Bass knob Knob harness Manual Also available for fast, easy install: APH-CH01 harness (sold separately) UPC: 609098819978