Marvelous

I have a 2013 SE, and I'd like to put my aftermarket amp in the back passenger side panel where the factory sub and amp are. I've searched and couldn't find how to remove the panel. Can someone help? Is it pretty simple? Also, anyone know if factory wires are ran back there even if this model doesn't have the factory amp and sub? And what is the best route to run the power wire from the battery to the back panel? Thanks.