It's kind of a PIA. You have to pull the, door thresholds, rear seat bottom (just snaps in) and both rear interior side panels before you can remove the deck panel. You might want to have a couple of those plastic push-in fasteners handy in case you mangle one.
2013 GT Premium Brembo
MGW, Blow Fish, AM Hood Struts
Tinted, Borla Touring AB, ProCal Tune
Full Shelby/Kicker Audio Upgrade