PAC C2A-CHY23 Amplifier Interface for Chrysler, Dodge and Jeep Takes The Full-range, Fixed-level Output From The Factory Radio & Varies The Line Level Output Up & Down Proportionally With The Factory Amplifier Adds 4-channel Pre-amp Output Signal For Use With Aftermarket Amplifiers In Chrysler, Dodge & Jeep Provides Remote Turn-on Wire For Triggering The Aftermarket Amplifier Plug in installation retains factory wiring integrity Reads CAN bus signals and provides analog audio signal Aftermarket amplifier integration interface module Allows you to add any aftermarket amplifier to gm SUVs and trucks that have a class 2 premium Bose amplifier Plugs into the vehicle's can bus Provides full range audio output (20-20,000 Hz) Reads can bus signals and provides analog audio signal