Traditional Culture Encyclopedia - Traditional festivals - How to change the old CD player and amplifier to plug in a USB flash drive? Urgent!!!!

How to change the old CD player and amplifier to plug in a USB flash drive? Urgent!!!!

Old amplifier can be added to an MP3 player (with u-disk interface), the power supply with the amplifier pre-amplifier power supply;

CD machine to change the words can only be utilized to the power supply and audio output connector, but also through the amplifier for audio power amplification, there is not much meaning. MP3 player Taobao a lot of, to find a USB interface on the line.