Crossover wiring...HELP!!!!
 

I have Polk components. It comes with a crossover. Three ports for speaker, sub and input. How do I wire the crossover into the new speakers from the factory setup? The installation manual doesn't even begin to say how. Hope you can help. ( I think it is must be pretty easy)...but...I still have no clue. Thanks.
PS- I have no amp or sub yet. Just this for starters.