Which colored wire is Monsoon Aux/CD?
 

I want to hookup an mp3 player to the auxilary input.

I took the radio out and tried to hook up some regular rca speakers to the back, but there are no inputs for that kind of wire. I have an adapter that i can use to convert the rca to the audio input jack on the mp3.

Which color wire is the auxilary input? Where does the end of the Aux wire stop?

Has anyone had success using this kind of setup?