Mp3 Music Player Micro Sd Module Arduino | Mp3 Player Arduino Speaker - Mp3 Module - Aliexpress
FM Transmitter - Car MP3 Player
Amazon.com: SparkFun MP3 Player Shield- MP3 decoder- Turn Any Compatible with Arduino Board into a Fully Functional MP3 Player- 3.5mm Audio Out Jack- 0.1" Spaced Header for Speaker Out- microSD Card Slot :
MP3 Player Shield Hookup Guide V15 - SparkFun Learn