Need Help wiring six speaker to a head unit

Hello,

I am a noob so I need some help wiring six speakers to a Onk Head Unit. I am not sure what the settings on the back of the speakers need to be set to or if I need some distribution piece to make this happen. The speaker do not have a model number. They are TANNOY's and probably about ten years old but are in great shape. Any help would be appreciated.