Search by KEYWORD
FAIL (the browser should render some flash content, not this).
Product Search: by VEHICLE  

AP4-CH21
Part Number:
AP4-CH21
Peripheral Part No: No Peripheral Equivalent
Category: Audio Interfacing

Product Overview
Advanced Amplifier Interface

MSRP: $299.95

**VERIFY YOUR VEHICLE**
Check Compatibility Notes Below

  • Compatibility Notes
  • Description & Features
  • Technical Docs
  • All Applications
Compatibility Notes

This interface is only compatible in vehicles equipped with a data-bus controlled premium sound system. To verify compatibility, look for an Alpine, Beats, or Harmon Kardon badge on the door speakers, center speaker, or factory subwoofer. If none of these brands are shown, check for the presence of a center speaker or subwoofer.


Product Revision History

Current Revision #: 1.1.1.9 Description: Initial Release Release Date: 1-27-17


Product Status

Product Description
  • AmpPRO simplifies the installation of upgraded amplifiers in data-bus controlled sound systems. With AmpPRO, you can improve audio performance while keeping an original radio’s fit, finish and features.


Product Features
  • 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
  • Sub level controller
  • Optional TOSLINK optical output (APA-TOS1 sold separately)
  • Simplifies amplifier installation
  • Prevents need for summing and DSP devices
  • Provides factory sound system upgrade solution


Quick Reference Cards

Tech Briefs

Tech Tips


MakeModelYearCategoryProduct
ChryslerTown & Country2008Audio InterfacingAP4-CH21
ChryslerTown & Country2009Audio InterfacingAP4-CH21
ChryslerTown & Country2010Audio InterfacingAP4-CH21
ChryslerTown & Country2011Audio InterfacingAP4-CH21
ChryslerTown & Country2012Audio InterfacingAP4-CH21
ChryslerTown & Country2013Audio InterfacingAP4-CH21
ChryslerTown & Country2014Audio InterfacingAP4-CH21
ChryslerTown & Country2015Audio InterfacingAP4-CH21
ChryslerTown & Country2016Audio InterfacingAP4-CH21
DodgeChallenger2008Audio InterfacingAP4-CH21
DodgeChallenger2009Audio InterfacingAP4-CH21
DodgeChallenger2010Audio InterfacingAP4-CH21
DodgeChallenger2011Audio InterfacingAP4-CH21
DodgeChallenger2012Audio InterfacingAP4-CH21
DodgeChallenger2013Audio InterfacingAP4-CH21
DodgeChallenger2014Audio InterfacingAP4-CH21
DodgeDurango2009Audio InterfacingAP4-CH21
DodgeDurango2011Audio InterfacingAP4-CH21
DodgeDurango2012Audio InterfacingAP4-CH21
DodgeDurango2013Audio InterfacingAP4-CH21
DodgeGrand Caravan2008Audio InterfacingAP4-CH21
DodgeGrand Caravan2009Audio InterfacingAP4-CH21
DodgeGrand Caravan2010Audio InterfacingAP4-CH21
DodgeGrand Caravan2011Audio InterfacingAP4-CH21
DodgeGrand Caravan2012Audio InterfacingAP4-CH21
DodgeGrand Caravan2013Audio InterfacingAP4-CH21
DodgeGrand Caravan2014Audio InterfacingAP4-CH21
DodgeGrand Caravan2015Audio InterfacingAP4-CH21
DodgeGrand Caravan2016Audio InterfacingAP4-CH21
DodgeRam2009Audio InterfacingAP4-CH21
DodgeRam2010Audio InterfacingAP4-CH21
DodgeRam2011Audio InterfacingAP4-CH21
DodgeRam2012Audio InterfacingAP4-CH21
JeepGrand Cherokee2008Audio InterfacingAP4-CH21
JeepGrand Cherokee2009Audio InterfacingAP4-CH21
JeepGrand Cherokee2010Audio InterfacingAP4-CH21
JeepGrand Cherokee2011Audio InterfacingAP4-CH21
JeepGrand Cherokee2012Audio InterfacingAP4-CH21
JeepGrand Cherokee2013Audio InterfacingAP4-CH21
JeepWrangler2007Audio InterfacingAP4-CH21
JeepWrangler2008Audio InterfacingAP4-CH21
JeepWrangler2009Audio InterfacingAP4-CH21
JeepWrangler2010Audio InterfacingAP4-CH21
JeepWrangler2011Audio InterfacingAP4-CH21
JeepWrangler2012Audio InterfacingAP4-CH21
JeepWrangler2013Audio InterfacingAP4-CH21
JeepWrangler2014Audio InterfacingAP4-CH21
JeepWrangler2015Audio InterfacingAP4-CH21
JeepWrangler2016Audio InterfacingAP4-CH21