I bought this but can't seem to get the touchscreen to work I tried getting it to work under touchscreen adjustments in the set up menu and it says to touch the top left corner where the plus sign is but when I do that it don't recognize it....any ideas?? also is there any way to hook up a iPod to this unit?? I don't see a aux input but is there a way to do it anyways?? Mmcdonnell98@yahoo.com