PAC AOEM-MAZ2 Interface that Allows Replacement or Addition of an Amplifier in Select Mazda Vehicles Without a Factory Bose Sound System Interface is Transformer isolated Maintains phase Linear from 20-20, 000 Hz Provides 2: 1 gain and infinite attenuation Input connectors plug into factory stereo and vehicle harness Interface that allows the replacement or addition of an amplifier in select Mazda vehicles without premium Bose sound system Interface is transformer isolated Maintains phase Linear from 20-20,000 Hz Provides 2:1 gain and infinite attenuation