If you're playing music from a USB flash drive, can you change the song using the touch screen or the steering wheel controls or do i have to listen to every song on teh drive?

 

You can use the touch screen to go through the USB content; However, my touch is set up, like everything else, to respond to the format. Wave files seem to work better; also, the way in which folders are managed is a bit cumbersome. The fewer folders, the better.