This is an old thread but I just have to share where I'm locating my amp in my '05 Wave hatchback because I'm so excited about it! I placed in the styrofoam block that holds the tools in the spare tire compartment. Just had to cut out the shape of the amp and pop it in. I'm not worried about overheating because it is a class D amp and doesn't get to hot. I was all discouraged because this amp was too large to place under the seat. I was almost just going to mount it on the box but then this brainwave came. This solves many problems (it's totally hidden, makes it easy to take the sub out if I need the space, and doesn't take up any room in the car) I haven't completed the install yet but I can share pictures of the final install once it's done.