Ah, is there another thread where this is discussed? I see only one pic here and just can't grasp what is going on at all.
There wasn't another thread, but the information that was contained in this thread I thought was summed up nicely.
Is there something you don't understand? The wiring is (literally) as simple as hooking up the separate wires together (and soldering them to make sure they're connected).
You can put them into a nice enclosure as Optix did, but that's not necessary.
That's pretty much it...