That is a Phoniex Gold Ryval V752 amp mounted in the fender well behind the left brake light assy. There is a ton of room behind those carpeted panels and plenty of places to attach brackets to hold stuff. I have a "Crossfire" brand 10" sub in a Audio Enhanchers PB110 box stuck over to the left side of the trunk. It's a offbrand subwoofer but that thing really sound great in the little car and says Crossfire to boot.