I installed the Kicker Key180.4 amp and wanted to share the install and setup details. I used the PAC ANC-CH01 to bypass the ANC and connect the speaker wires and power and ground. This is a "smart" amp and uses an included mic to setup the EQ and time delay. The setup was easy using the included instructions. The sound from the factory speakers is alot better after the initial setup, but it did not sound the way I wanted, so I listened to different types of music and adjusted the radio eq to find the right sound. On the second setup, I reversed the eq settings of the radio (ex... I boosted bass by 2 in my tests, so I used -2 for the setup), also I put the mic on a strip of wood in the middle of the two front headrests to change the delay for a different sound stage. The gain on the amp is set at minimum for the factory speakers. Overall, it is definately an improvement to the sound. Later I will get better speakers and add a sub.