Listen to your MP3 player through your car stereo-and get the best quality sound for your drive. Compatible with most MP3 players TuneCast Auto Universal connects through your FM radio receiver. At the push of a button ClearScan Technology quickly finds the clearest FM station for your music while the high-contrast backlit display lets you see the station clearly. With two programmable preset buttons and a PRO setting for optimizing audio and boosting volume TuneCast Auto Universal lets you listen like a pro.