I've been trying for a couple of days now to create playlists on a USB flash drive and on a USB hard drive to use in my Prius C. The head unit (nav) recognizes the playlists and lists them by title, but when I choose one it always says "no entries" as if its an empty list. I've tried m3u and pls format lists, neither seem to work, though they work fine on my PC and Mac when I plug the drives in. The lists were created on the drives themselves with no drive letters in the paths. The filenames in the playlists are "folderName/filename.mp3" but for some reason the stereo can't seem to locate the songs at all. Anyone have any ideas? Thanks in advance!