Audio Systems: Chrysler head unit replacement, hyman ltd, chrysler head

Question
I have installed a new head unit in  my town & country with the infinity amplified speaker system and cant get any sound out of the speakers.  all other features of the head unit work fine, just no sound.  there are two wires that were connected to the factory head unit that I think are for the amplified speakers.  One has a black clip that says "AMP", and the other is a red/white clip that says nothing.

Answer
did you know that there was a town and country in 1948 ?

look

http://cgi.ebay.com/ebaymotors/Chrysler-Town-Country-AACA-Senior-Award-winning-T...