I have two these, and one doesn't work:
http://www.klipsch.com/igroove-hg-ipod-speaker-system
I've established the external power supply isn't providing current; and the on/off switch is broken.
I'm unable to fix it myself and am sure it's not worth getting repaired.
It sounds really cool when it's working.
Maybe someone on the forum can fix it.
If you can - it's yours.
Or if you want to use it for parts - there are some useful little speakers.