How do I take the sunroof off?

So the sunroof has a pretty bad case of cancer, what I want to do is just take off the top part, the painted metal, without having to remove the entire assembly. I have a replacement part and I just want to switch it. Are there online manuals that Show me how to do this? I'm almost a complete noob, somebody help!

first you got to take off a few screws at the back of the sunroof in order to take a part of the frame out, after that take the gray cover off and you will see 4 nuts on each side of the sunroof holding it to the frame that close and open the sunroof. Take those nuts off and the whole this is going to come off.

Pretty easy to do...