Installing a sub and amp?

ok.. so you have power and ground set up for the amp.. thats easy to hook up to the amp.. there will be three wires.. one set will be your RCA cables that plug into the back of your deck labels amp or rear outputs.. these are what tell your amp to do... then there will be a thin blue wire.. it will also be labeled on your deck and also should be a blue colored wire.. this will tell your amp to turn on and off with your deck.. very simple.. then you will run your speaker wire to your sub as you normally would. hope this helps