Music players have gone down a similar path ... and the only two buttons are for play/pause and shuffle mode. Underneath, an Arduino Uno runs the show, hooked up to a RC522 RFID interface board.

Inside the radio there is an Arduino Mega controlling the breakout boards for an Si4703 FM tuner and a VMusic3 MP3/USB music player, and a PT2314 audio processor. For display there is a set of ...