You cant mess up anything. The door has I think just one screw, the rest of the door you just pop out and lift up. The speaker has 4 screws and two wires. I don't see how you can screw that up. It's not rocket science. If it is the factory speakers you are replacing you will need to cut the cables and replace them to the female connectors that should be included with the new speakers, which you should be able to do, and then its just put everything back together. As long as you have a little common sense, its something you can easily do.