First look for trim fasteners EVERYWHERE and remove all of them with an actual trim fastener removal tool. Then carefully move the trim piece towards the front of the car...
Be careful and do not expect to get it back in properly on the first try.
Then just remove all the fasteners like KT said, I think there may be 1 or two bolts, and out they come. If I can figure it out, my gosh I hope you can. lol