hookup a double din pioneer deck on the 2003 toyota matrix? I've already tooken out the stock deck that comes with the car and also bought a wiring harness for the deck that I want install. But the pioneer have so many differ color wires. I don't know which wires means what on the pioneer. I do know that red is supposed to be the power but on the pioneer it doesn't have any solid red. If anyone knows how to wire the pioneer please help me. Am having difficulty. I would rather do this on my own then to pay almost $100 for installation. So please help this gal out.