[KevinC]

Thanks Koruptor. I've read the Grom manual, navigating media is basically the same kludgy process as it was on the CP600. I will simply load up a USB stick with several long playlists and be done with it, so navigation won't be problematic. If I want to hear complete albums or anything not on the stick, I'll just hook up my phone via the aux port and roll that way - but I don't want to fumble with it all the time, hence looking for a Grom-type solution as well.

I could opt to connect something like an old iPod nano, but I don't think there's enough juice to keep it charged. The USB stick solution means I can just leave it there and forget it.