ok im gonna be installing the whole shebang in my buddys car.. Its a Chevy Cobalt (2008), and he wants the Factory Radio kept in.. Ive did tons of installs but none with the Stock Radio. What do I need for this install, and any instructions/pointers will be appreciated.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif