A-link MP3 FM transmitter and player 3in1, MP3FM Want to be able to add a MP3 player to any existing FM car stereo? Now you can use this MP3 player with built-in FM transmitter. Simply insert an, USB memory flash drive (usb1.1 & 2.0), SD or MMC with MP3 files into the player, plug the MP3 player/transmitter into the DC (cigarette) lighter in your vehicle, tune your radio to the appropriate frequency and the MP3 player will launch the MP3 music stored on the memory device automatically .