Sony's CDX-M60UI marine CD receiver. Sony's "1-wire" USB input makes it easy to connect and control your iPod® or other USB devices, and it plays both store-bought and recordable CDs, including discs loaded with MP3, WMA, and AAC files. You can add optional satellite radio or HD Radio® tuners, and you'll also find a handy front-panel auxiliary input for your MP3 player or any other outboard sound source.