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. BENEFITS: Simplifies amplifier installation Prevents need for summing and DSP devices Provides factory sound system upgrade solution FEATURES: Can be used to upgrade the entire sound system or just part of it thanks to retention of 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 Sync, Bluetooth audio and all warning chimes Plug & play installation Sub level controller Optional TOSLINK optical output (APA-TOS1 sold separately) INCLUDES: AmpPRO module 24-pin and 54-pin harness (MS CAN) (Dual MS CAN) Bass knob Knob harness Manual Also available for fast easy install: APH-FD01 harness (sold separately) UPC: 609098817042