Before I got my new 'Stream with the built-in car stereo I used a trash-picked (free) Altec-Lansing 2.1 computer speaker system from about 1999 or 2000 with an iPod. Imagine my surprise after retrieving it from the dumpster, getting it home, plugging it in and discovering it worked perfectly. Since it was free I never really worried about it being stolen and left it outside at my campsite often. I have used it to play Christmas music via Pandora at our office Christmas parties 2 years in a row. I am still using it as I am typing this post on my PC at work playing my iTunes. This thing really rocks! I can't believe someone just threw it out!
I know a couple who travel with their Bose Wave radio.
As an aside- I am wearing work uniforms (free to me) and free shoes, too...
2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
WBCCI #1811, Region 6, Unit 56