what size and type of wire should i connect to my sub i'm using 4 12" Fi Q on 2 crescendo bc2000d. and i've been using some speaker wire i got from an audio shop. but i wanna do this right. so what size should i use Oxygen Free Copper or Copper Clad Aluminum / should i do copper for pos+ and aluminium for neg-, or go only copper or aluminum. i'm gonna get all my wiring from knukonceptz