Originally Posted by radmanly
As your car is a 2005, it should already be wired. All you should have to do is plug the standard wiring harness into the back of the nav unit. You will need an antenna adapter and a GPS antenna.
Woah. I'm confused now. I have a deal going with a fellow forum member that we're going to exchange head units (non-nav+$ for nav). He is going to include the antenna as well. So what you're saying is that there should already be a wire back there and it's just a matter of connecting it? Could you please elaborate?
