Whither the headphone jack and power button?

My guess is that the speaker houses the headphone jack, the holes are hidden behind the stir welded (and much unloved by me) chin, and the speaker lies right next to the logic board with the other connectors.

As for the power button, my guess would be that the actual button lies underneath the surface, and it would make most sense to place it on the power supply board although I couldn't find evidence of any physical buttons, so it might come from one of the many cables they didn't remove), I can't see from the pictures where the power button is, but perhaps it is on the back, in the middle, underneath the power cable, which would be most esthetically pleasing.