PAC AOEM-HON20 Interface Module that Allows the Replacement or Addition of an Amplifier in Select 1998-2007 Honda Vehicles with or without A Premium Sound System Interface Module that Allows the Replacement or Addition of an Amplifier in select Honda Vehicles With or without a Premium sound system Plug in installation retains factory wiring integrity Linear 20-20,000 Hz sound reproduction based on input signal Interface Module that Allows the Replacement or Addition of an Amplifier in select Honda Vehicles With or without a Premium sound system Plug in installation retains factory wiring integrity Linear 20-20,000 Hz sound reproduction based on input signal 4-channel RCA output