Cadillac: Speaker wire colors, wire colors, codeing

Question
I have a 1994 cadi deville 4.6 and i need to know the color codeing of the speaker wire example what color wires goes to the front speakers, which color goes to the back speakers, the door speaker, the ground, because we are putting in an after marker speaker system

Answer
I need to know which radio you have.

Do you have ONLY a cassette player type that has no buttons across the very bottom to push ?

Or the One that has the buttons across the bottom labled:

    <REV   FWD>   PREV   NEXT            
      1     2      3      4      5   SET



OR does it have:

      <REV   FWD>   PREV   NEXT   COMP         
        1     2      3      4      5   SET