I have a waterproof MP3 player and the adapter which is a USB to 3.5mm Stereo jack plug, has been stolen. In the real world I could go out and buy one or get it on eBay BUT in Zimbabwe we are not afforded such luxuries. Therefore I need to try and make one. The adapter used to charge the MP3 player and was used to transfer the music to the MP3 player. I would appreciate it if someone could give me a wiring diagram of how to make this adapter.