I have a 1958 Edition, so my stereo isn't much. Planning on throwing a bunch of money at the stereo in the Spring, though. Every professional stereo shop I've talked to has advised against putting a subwoofer in the hatch. They've more or less explained it as a subwoofer in name alone, so that Toyota can tell people the car comes with a subwoofer. Even for an aftermarket setup, the rear hatch has too many compromises to make it worth it.