Radio questions and speakers

Bringing this thread back 2 life. I have verified I have power coming on the old wire that used to be attached to the radio. Also I have ground, I am getting about 11.4 volts.

So I have the CD stereo that came out of a 2005 Pontiac. I cant seem to figure out how to wire it? I tried the usual pins on the back and nothing. Any stereo should work in the 1966 Dart, right? It is just a 2 wire system. That should be able to run any newer stereo on the market, right? Or Am i missing something?