Depends on the stereo Jackass, the Mustang, please, had to have some special crap, and because of that it needed a special harness, but, you can get it at WalMart for $14! hahahahahahaha!!!!! LOSER! let me find out, give me the name of the stereo and the wires. It would be easier to see it, bring it up here and have my Brother Evilarnold put it in for you, he knows how to do that stuff.