Sony Xplod CDXGT420IP GT Series Head Unit (Discontinued by Manufacturer) Sony Xplod CDXGT420IP GT Series Head Unit Plays CDs, CD-Rs, and CD-RW discs, including discs with MP3 &amp; WMA music files CD player with built-in amplifier (17 watts RMS/52 peak x 4 channels) Three band digital graphic equalizer Preset 30 radio stations (12 AM and 18 FM)