I already explained, it matters. You cannot just use SATA header, fan header, in all situations because they may be directly tied to the 12V rail.
You can trigger it if you use logic triggering from your plugin, but using a fan header is not logic, it is a power rail. You can't use power to trigger power, because then it'll feedback loop itself and latch in the 'on' state.
I don't want to argue, but if you don't understand it's okay. Just don't be surprised that it may not work in all situations.
I have moved this discussion over to the GxR-DIY thread.