Amplifier Integration Interface for Select Chrysler, Dodge, and Maserati vehicles with amplified sound systems
| Year(s) | Make | Model | Trim Level | Additional Info |
|---|---|---|---|---|
| 2011-2014 | CHRYSLER | 300 | ALL TRIM LEVELS | — |
| 2011-2014 | DODGE | CHARGER | ALL TRIM LEVELS | — |
| 2011-2015 | DODGE | JOURNEY | ALL TRIM LEVELS | — |
| 2015 | MASERATI | GHIBLI | ALL TRIM LEVELS | — |
| 2014-2016 | MASERATI | QUATTROPORTE | ALL TRIM LEVELS | — |
AP4-CH31
Amplifier Integration Interface for Select Chrysler, Dodge, and Maserati vehicles with amplified sound systems
Installation Instructions
- Download the latest version of the AmpPRO PC Application. It is VERY important that you use the latest version.
- Download the latest version of our firmware.
- Extract the firmware file and setup file from the .ZIP files that were just downloaded.
- Connect the interface to the computer's USB port and install the update.
Detailed Instructions
- If this is the first time using the AmpPROPC Application, run and install “ampproexe”. This will install the PC Application onto the computer. The AmpPRO program will then install the update files from the computer to the interface.
- Open the AmpPROPC Application using the new shortcut created on your desktop.
- Connect the interface to the computer using a standard to micro USB
- Click the "Firmware" icon.
- Click “Select File” and browse to the new firmware file. The new firmware can be found where you saved it before beginning.
- Once the file is chosen the update will begin. When successful it will show the text "Update Completed".
- Firmware Download, Version 1.1.4.4 (Released on January 20th, 2021)DownloadRelease Notes
***No download available, hardware update only***
- Minor hardware change. Does not affect user functionality
- Firmware Download, Version V3 (Released on August 11th, 2017)DownloadRelease Notes
- Adds “Two Channel Mode” on Dip1
- Reduces audio delay from ~14ms to ~1ms
- Adds “Two Channel Mode” on Dip1
- Firmware Download, Version V1 (Released on February 2nd, 2017)DownloadRelease Notes
- Initial Release
- Utility/Other, Version V17 (Released on July 31st, 2023)DownloadRelease NotesAmpPRO PC Application
- Utility/Other, Version 1 (Released on February 18th, 2021)DownloadRelease Notes
- Can be used for AP4 troubleshooting or for aftermarket amplifier gain setup
- Contains the following test tones, all at 0dB
- 20 Hz
- 40 Hz
- 100 Hz
- 250 Hz
- 350 Hz
- 500 Hz
- 1 kHz
- 8 kHz
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 Note: 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)
How it works:
- AP4-CH31 Instruction Manual
- Rev. 020717 ***Only applicable to revision 1.1.1.1 firmware on AP4-CH31***
Download (747.19k) - AP4-CH31 Instruction Manual
- Rev. 070717 ***Only applicable to revision 1.1.1.3 firmware on AP4-CH31***
Download (746.57k) - AP4 Loose Pins Tech Brief
- Download (733.06k)
