TwistedPhil
+1y
You probably won't like the sound. ipods and other mp3 players have the output tuned primarily for headphones, and don't have the same bass and treble adjustments (as well as fade and balance) you need to make a car stereo sound good. With how cheap cd players have gotten lately (we have a DVD head unit for $129 on our site!), there's really no reason NOT to have one.
But, if you are set on trying it, you just need to hook your power leads to the battery, your ground to a solid chassis ground, and the remote wire to a (+) from your ignition switch so the amps turn off when you shut the car off. You can get headphone to RCA cables from Radio Shack, and you're good to go.
Good luck!
-Phil at FBI