PAC AOEM-CHR3 System Interface Kit to Add or Replace An Amplifier in Select 2007-up Chrysler, Dodge and Jeep Vehicles with an Infinity System Adapter used to to add-on after-market amplifier in Chrysler, Dodge and Jeep vehicles Not compatible with vehicles that have a factory amplified system Easy installation 4-channel interface allows for the output to be adjusted to the requirements of the new amplifier Complete with amplifier trigger wire Adapter used to to add-on after-market amplifier in Chrysler vehicles equipped without a premium sound system Easy installation Maintains phasing 20-20000 Hz output 4-channel interface allows for the output to be adjusted to the requirements of the new amplifier