Al, The rocker trim is open ended so once you get the wheel well trim off try sliding the rocker trim forward and backward. The retainers are plastic so if you have to pry do it from the bottom with steady pressure while pushing down vertically and they should pop. The retainers have a plastic conical shaped pin the pressed in, getting them off without the pins dropping into the rocker is difficult and a lot of guys here complain about reusing them.
Here you can see the approximate locations back to front.