It sounds like it is too late, but you should go with the xpress db-all aftermarket kit. It is strictly plug-and-play. I'm going to pick one up at our Best Buy this weekend. Now that I'm thinking about it, I may have them install it too.
BTW, you don't need any extra remotes. It is set up such that you press your lock button 3 x's and the truck will start right up.