Hi there! I'm trying to change the wallpaper in my 2013 Mustang GT and no matter what I try, it's not working. I'm prompted for a CD/DVD with jpegs no larger than 1.5 mb on it. So, I burned some images to a couple of CDs and no matter what I do, when I insert the CD, I get the message "Bad file or unsupported format". What am I doing wrong? The CDs have the images on them, the images are there when I look at them on the computer. Is there any other way to change/add wallpapers? Are we unable to add via USB? Is there something special I need to be doing to these CDs when I burn them? Thank you!!!