I am trying to put a new CD player in my sons Altima. I can not figure out what wires go to which speakers and to the antenna drive. Can anyone steer me in the right direction?

here, look under the radio installation section, you'll find wiring info:

http://installdr.com/InstallDocs/Nissan/Altima.html

also here, under nissan:

http://installdr.com/QuickWiring.html

Dragoon103, thanks for the tip. That is exactly what I am looking for.