If you go to Crutchfield and outfit your car, it will show you all of what you will need to install a stereo into your car. The only thing they wont show you is how to do the bypass to watch DVDs while driving. They can't show you how to do that for liability reasons but there are plenty of write ups and you tube videos on it. As far as a recommended place to buy, I suggest Crutchfield or call Double D up in Illinois and Dennis will hook you up with a good deal. I spoke to him the other day and plan to call him back and order from him when my funds allow. I don't think I can post links to either of these because they are not site sponsors but google double d mods and you will find him.
Looks like you got a good deal on your GXP. Best of luck with it.
