and what does it look like and will walmart have 1
Wal mart does have them, I'm not sure if theyhave one for your car. In the back of your deck you have a square or rectangle plug with prongs and wires it plugs into your deck and the other side is wires. A wiring harness looks very similar. It has a square or rectangle plug with prongs an wires. The wires will be the same colorado as the wire in your decks harness. Except that end goes in the car. You'd wire the wires up together. Plug one plug into the car, plug the other one into your deck. Like I said wal mart should have them, look by the speakers and decks.
