I have trouble understanding why if my quick start guide for my juno says I don't need an audio interface, why I would need one. But as I said I have taken a 1\4 inch to 1\8 jack into my green sound port, but still no sound even tho I see in Cakewalk there is some green dots activation in the main screen when I touch my juno Keyboard... Any other suggestions? I have already spent hours and hours researching this.... Any help is appreciated greatly.