Still, Ned, you're lucky that your car stereo knows what USB is.
At least the 4GB FAT32 file size limit isn't a big deal for music...
4GB wouldn't be an issue for car stereos, but could be for video files on a TV. Thankfully (I guess) smart TVs are so awful that nobody would ever want to use them for that functionality.
While we're on the topic, does anyone know why car stereos always have a limitation on the maximum number of files and folders they can use through USB? It's generally always 10,000 files /1,000 folders, and the best I've ever seen is 15,000 files. It's been this way since I bought an aftermarket car stereo back in 2008 (for a different vehicle), and it never changes -- even on 2016 flagship units. Is this a limitation of FAT32, or something else?