Darknesswolf, you have PM
In addition to whats in my PM;
Call (or, I recommend dropping by) your local car audio shop. Not a big name shop like Best Buy, Sears or Frys Electronics -- but a small shop that does car audio & alarm installs. Their installer tech can recommend exactly what you should do with it, without ever even needing to look at your car.
Good luck with your install and enjoy your new system