My Christmas present will finally be mine tomorrow when I take possession of a Terrain SLT2 that was ordered on Nov 21. It wasn't ordered with Nav. I am wondering if the USB port will be able to play MP3s through the system if a flash drive (fat32) is the source of the files. I realize this question has been addressed in various ways in few other posts but I am still a little fuzzy. Is the stereo system ( without Nav & DVD entertainment) just for ipods & Mp3 players, or will it actually read and play MP3 files from a flash drive? Thanks in advance to anyone who can clarify this for me 
