Thanks for the feedback, i did follow steps 1-4 and the mp3 files do play on the unit itself after step #4 but it won't switch over to my car speakers which is the whole point of having the amplifier. Now if i start the unit without leetlauncher then all the sound automatically switches over to my car speakers. It just won't do it with leetlauncher. I am trying to play regular mp3 files. Again thank you for your help!