Faux Hill

Hello: A friend has a 2014 pasenger car version, XL, not the titanium version. The upper shelf has what appears to be a punchout for a radio, with a protective shell behind it. What was it used for? What existing wiring is up there already? It looks like a good spot to put a 2mtr/440 box; On a lower level where is good under the dash to tap off 13vdc say 5A for various gadgets? I've seen discussions here on fuse panel locations but I'm not sure if they refer to his generation or the original.