For those of you that want direct iPod/iPhone & AndroidTM control plus the ability to custom control the front panel key illumination to match your dashboard. The KDC-4554U is the model for you! iPod/iPhone devices are catered via its front mounted full speed USB input. Charging of USB connected devices is helped by the high 1amp maximum output. Mobile MP3 players can also be connected via an illuminated front audio input socket (AUX). A cool blue display gives easy visibility even in sunny conditions. And a high power 4x50watt built-in power amplifier will fill your car with high quality sound from any source.