Won't do anything. Basically bricked...? Ideas?

This thing was never dropped. I had it in my car during the winter, and it is in good shape. When I brought it inside, it won't take a charge, the screen doesn't show any symbols at all. I plugged headphones into it, and pushed the play button, thinking maybe the screen wasn't working. Nothing.

I followed the instructions to open it up, and I carefully disconnected the battery, and re-connected it. I also disconnected the HD, and re-connected that as well. Put it back together, and nothing. It also does nothing when connected to my MacBook.

Anybody got ideas? Other than the trash can?