Just go to any home improvement store (home depto, lowes, etc.) You can buy wire off the spool per ft cheaply. I like 12 AWG wire. You only need to use two of the binding posts on the speakers and receiver, positive and negative. Coax with RCA ends is what you use for the sub.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85