Mike Rivers wrote:

Gotta start thinking about a dashboard-sized computer and
citywide wireless Internet. Or maybe just take a handful of my CDs
with me when I go out.

You can get an indash CD/radio that will play MP3's for under $150 now.
A CD-R with 160-192k MP3s lasts a loooong time.

Or just rig up a jack for your NJB3...