Recently got an iPhone several months ago (I was a Mac user in the beginning-1984 in college with the original, but didn't go back to MacOS until the abomination that was Windoze 8. Switching to iOS from Android made sense seeing how it fit in with the rest of my personal computing ecosystem, plus which the battery life runs rings around Android) I have a SD card reader that plugs into the charging port of my iPhone SE. In the card reader I have a 128GB card with several thousand mp3 files, every piece of music I've acquired and if necessary, digitized or ripped, since the mid 1970s. With my old Android, I could just fit the SD card into its slot and PowerAmp (which will never be ported to iOS) would happily play all of the files, shuffling them randomly. I would like to do the same thing on this iPhone (hence the SD reader plugging into the Lightning port), without synching anything, without resorting to the cloud (I'm overseas working for Uncle Sam), without having to copy a small subset of the files to the phone itself as there is not nearly enough room for all 128GB of music files, and without having to spend hours creating playlists. We're talking over 2,000 files, most of which are not available in the cloud as they are over 40 years old, and I really don't have the room internally in the phone to copy all I want. Ideally I'd start a music player when I start the car and it would play random songs from the SD card (directories for artist, subdirectory for album) until I turn off the phone, like I was able to do with PowerAmp on my old Android. Any suggestions?