PAC - AP4-CH21 - ***Serialized*** AmpPRO for select 2008-2015 Chrysler (medium speed) vehicles. Audio Output Interface for Vehicles with Digital Audio System

PAC – AP4-CH21 (Serialized)

AmpPRO Audio Output Interface
For Select 2008–2015 Chrysler / Dodge / Jeep Vehicles (Medium-Speed CAN)
Designed for Vehicles with Factory Digital Amplified Audio Systems

DESCRIPTION

• OEM audio integration module that provides a clean low-level RCA pre-amp signal while retaining the factory radio.

• Designed specifically for medium-speed CAN Chrysler audio platforms where the OEM amplifier processes a digital audio signal.

• Serialized hardware ensures proper communication and software matching for correct audio routing and system behavior.

FEATURES

• Outputs Front + Rear RCA low-level audio for amplifier or DSP integration.

• Maintains:

  • Factory Bluetooth® audio

  • Navigation prompts & safety chimes

  • Steering wheel audio controls

  • Factory tone, fade, & balance controls

• No speaker-level summing or external LOC required — converts from the digital source path.

• Provides +12V amplifier remote turn-on signal.

• Fully reversible install — no factory wire cutting.

FUNCTIONAL APPLICATIONS

• Add subwoofer amplification while keeping OEM head unit.

• Feed a DSP for staging / EQ / time alignment tuning.

• Fully re-amplify all speakers for improved clarity and output.

• Ideal for OEM-plus / stealth audio upgrades.

SPECIFICATIONS

• Input Source: Factory digital audio bus (Medium-Speed CAN)

• Output: 4-Channel RCA (Front L/R + Rear L/R)

• Output Voltage: Up to ~5V (adjustable)

• Trigger Output: +12V remote amp turn-on

• Supported System Types:

  • Factory amplified systems (digital architecture)

  • Some base systems depending on trim configuration

INSTALLATION NOTES

• Typically installs at the factory amplifier location.

• For full speaker re-amplification, pair with PAC APH-CH## T-Harness (optional).

• Some vehicles with Active Noise Cancellation (ANC) may require ANC disablement when adding sub-bass reinforcement.

• Head unit and infotainment functions remain fully operational after integration.

FITMENT

• For select 2008–2015 vehicles using medium-speed CAN Chrysler audio architecture.

• Common applications (model & trim dependent):

  • Chrysler: 300, Town & Country

  • Dodge: Charger, Challenger, Durango, Journey, Grand Caravan

  • Jeep: Grand Cherokee, Commander

  • RAM (early years): Certain trims with digital amplifier systems

• Fitment confirmed by amplifier type + CAN speed, not trim level alone.

INCLUDES

• AP4-CH21 (Serialized) Interface Module

• Vehicle-specific harnessing

• Remote turn-on output lead

• Setup / configuration instructions