Didn't you ask this not too long ago
Remove the door panels to access the speakers. That will give you the colors for the speaker wires. Use a test light from your local auto parts store & with the key on find the one that has power, that is your ignition/swith power, red wire to your radio. You will have to run a wire from a constant hot (i.e. battery or some other source that is on with the key off) that is the yellow wire to the radio. Run the black wire from the radio to a good ground under the dash. Wire your speakers.
http://board.marlincrawler.com/index.php?topic=33397.0
