The 18 Prius just hooks up automatically to my phone (via bluetooth), where I now have (just counted) 142 albums (mostly from CDs converted to max quality mp3 on my computer), a dozen or so "playlists," a whole bunch of lectures, instructional mostly, and the entire Scourby reading of the King James Bible. A handful of Audiobooks too, I'm just getting into them for long-distance runs. That pretty much keeps me going during the times when I'm not preferring silence. Amazing that I used to think "serial access" 8-track tape was a cool thing. . .