PAC Amplifier Integration for Select ’11-’20 Ford vehicles with 8.4” Radio and Factory Sony Amplified System


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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.


  • Simplifies amplifier installation
  • Prevents need for summing and DSP devices
  • Provides factory sound system upgrade solution


  • 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 (APATOS1 sold separately)

AmpPRO module
24-pin and 54-pin harness (MS CAN) (Dual MS CAN)
Bass knob
Knob harness


  • 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 that the vehicle has a compatible amplified system. If you are unsure of your vehicle having an amplified system please contact an authorized Ford service center for further clarification.
  • 2018-2019 Super Duty Trucks can have either Sony or B&O systems to be compatible.
  • 2019+ Mustang must have B&O System to be compatible. If the amp looks like the one pictured, it is compatible. The amp can be found in the driver’s kick panel. If the system is amplified and not badged then the AP4 is not compatible as this is a completely analog system.
Manufacturer Model # AP4-FD21
UPC 609098817042
Case Quantity 4
Weight 1.20 lbs
Carton Dimensions 5.75 × 2 × 8 in
Make Model Trim Engine Year
Ford Edge 2015 - 2017
Ford Escape 2016
Ford Expedition 2015 - 2017
Ford Explorer 2011 - 2018
Ford F-150 2013 - 2017
Ford F-250 2013 - 2019
Ford F-350 2013 - 2019
Ford F-450 Super Duty 2013 - 2019
Ford F-550 2013 - 2019
Ford Focus 2012 - 2017
Ford Fusion 2013 - 2016
Ford Mustang 2019 - 2020
Ford Taurus 2013 - 2015