PAC Audio
PAC Audio AmpPRO SUB APSUB-CH21 2 in 1 accessory
Adds aftermarket subwoofer amplification to select 2007-2018 Chrysler, Dodge, Jeep and Ram factory systems while retaining radio control and EQ
- Simplifies subwoofer amplifier installation in databus-controlled factory sound systems
- Integrates with factory radio for full control and optimum sound
- Maintains factory EQ settings when adding aftermarket subwoofer amplifiers
- Plug-and-play installation requires no permanent vehicle modifications
- Compatible with select 2007-2018 Chrysler, Dodge, Jeep and Ram models
Vehicle-Specific Subwoofer Interface
The PAC AmpPRO SUB APSUB-CH21 is a 2-in-1 accessory that connects an aftermarket subwoofer amplifier to the factory radio in select Chrysler, Dodge, Jeep, and Ram models from 2007 through 2018. It is built for installers and owners who want to add bass without replacing the original head unit. The interface preserves the vehicle's databus communication so all factory controls remain functional. Buyers who need a universal line-output converter for a non-supported vehicle cannot use this model.
Databus Integration and Plug-and-Play Fit
The unit plugs directly into the factory wiring harness behind the radio, eliminating the need to cut or splice any original wires. It draws the audio signal and databus commands from the vehicle's amplified sound system and delivers a clean, low-level output for the new amplifier. Because it integrates with the existing databus, the factory radio retains full control over volume, EQ, and balance settings. Vehicles without the factory amplified system or those outside the listed model years will not be compatible with this specific interface.
Passive Operation and Signal-Level Output
The APSUB-CH21 operates from the low-voltage signal present in the factory harness and does not require a separate high-current power or ground connection for its own circuitry. It adds no audible noise to the audio path and introduces no additional thermal load inside the dashboard. The device simply conditions the existing signal for the aftermarket amplifier, leaving the vehicle's original electrical demands unchanged. Installers should verify the factory amplifier is present before beginning the installation.
Highlights
- Simplifies subwoofer amplifier installation in databus-controlled factory sound systems
- Integrates with factory radio for full control and optimum sound
- Maintains factory EQ settings when adding aftermarket subwoofer amplifiers
- Plug-and-play installation requires no permanent vehicle modifications
- Compatible with select 2007-2018 Chrysler, Dodge, Jeep and Ram models
Specifications
No published specifications for this item yet.
Questions about this item
What vehicle wiring does the APSUB-CH21 tap into for the subwoofer signal?
The interface plugs into the factory databus wiring behind the radio to extract a clean subwoofer signal without cutting any original cables.
How much heat does the module generate during a full day of driving?
The small passive unit produces negligible heat and requires no fan or external cooling under normal operation.
Which factory radio must already be in the dashboard for this to work?
The original Chrysler, Dodge, Jeep, or Ram radio with databus-controlled amplification must be present for the APSUB-CH21 to integrate.
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