I have a Pioneer AVH-4200DVD radio I want to install in my 2006 LT but I'm having trouble finding out everything I need. I know I need a double din mounting kit, a wire harness adapter and the harness for the steering wheel controls. Can anyone provide a link for the mounting kit and harness adapter? Or is it as simple as going to best buy or a car audio shop? Cant find much when surfing the internet.