I am trying to play audio from a USB device to my Phillips MCM309R shelf stereo system. I have actually tried three different sources...a Creative MP3 player, a Samsung Galaxy Tablet, and a Samsung Galaxy S2 smart phone. All with different formats of music. None will play. I have tried it with debugging on and tried it with it off. When I connect it to the stereo, it displays "Reading" then goes to "Unplug" and never plays. Any suggestions on what I may be doing wrong?