What are the last two button to install. There is the side view mirror arrows, the one for the the scion security, and the one for the under dash light (if you have them installed). There is two more blank slots for some type of buttons. I assume one is for the fog lights, what about the other. I don't think they would be there if there wasn't anything to install. Maybe a optional slot for aftermarket stuff?? I would like to fill them with the toyota products they're meant for.