I have both an H300 and H100 and I have noticed that the H300 has one cool feature. It will power-on while you insert the USB cable or the AC adapter.
Is it possible to mod the H100 to do the same? I think that by providing voltage on the "PLAY" pad (on the back of the motherboard) then the player will turn on. The alarm part of the RTC mod does exactly this.
The problem is that in order for it to work properly the voltage signal must not be constant. Upon connection it must give a signal and then stop, because if the signal is always there, then when you press the play button the device will crash.
So, is there a component on the PCB that has that sort of behavior?