The first step was to take off the original fabric and to do that, I start with the trim. I used a flat head screwdriver and a hammer to get under the first piece and from there I use a pliers to pull it off. As much as possible, I try to get the staples along with it.
I also take lots of pictures as I go because it's incredibly helpful when you need to put it back together. I always work backwards from the way it was put together.