LOL! The 5 wires going to one terminal would indicate i was probably right. That would be all the lights, The middle two are power feed (1 coming in, the other off to feed something else), the black wire for the running lights probably
I say Probably, I would test that black wire and see if it's live when you switch on the ignition. If it is, That's your feed and all the other wires are simply the lights. Hookem up in whatever order you want on the last two terminals. But I would stay with the way it's supposed to be.........
Ray