I can't express how confused I am right now. I wired the fuse block according to the instructions given. I have tried to find out the answers to your questions, but unfortunately I haven't been able to find out yet. I do have a meter to check these out, but it seems to be malfunctioning right now. It doesn't have sound for testing continuity, so I am confused as to how to use it. I don't know what I did with the instructions, either!