See above.2.) Wire connection between P2140/P1900 & mini, screen, and hub.
Most amplifiers use standard RCA jacks. I don't know of any proprietary connections.3.) Wired connection between mini & amp?
Does an amp have RCA jacks? Or does it have its own input standard?
And there's a diagram in this thread: http://www.mp3car.com/vbulletin/faq-...tereo-amp.html
I highly recommend perusing the FAQ section of these forums. There's a lot of useful infrmation in there, including a write-up on installing a Mac Mini by our own BugByte.
Welcoem to tyhe madness!