PasswordJDM fogs should be DEPO style. Which means they are powered by the battery so you should be able to use them without even putting the key in. Not sure though so someone correct me if I'm wrong.
I know this is quite an old thread, but I thought I'd answer this question since I currently have my fogs wired this way. Because the fogs use a relay to turn on, you basically just need a second 12V source that's independent of the lights. I used the one that goes into the back of my head unit. Now as long as my key is in ACC or the engine is running, I can turn my fogs on without turning even my parking lights on.