Good LOC from auto barn cost $80 for a 2 channel whick gets you to RCA ports or a pair and 4 channels are $120 which gets you 2 pairs, you just hook up the wires that come out of the LOC the wires from the head unit the manual that comes with it tells you which wire is which and I'm fairly sure the wire colors out of the head you are Dark Green - Light Green + = Front Right Speaker, Grey - Brown + = Front Left Speaker, Light Blue - Dark Blue + = Rear Right Speaker, Yellow/Red - Brown + = Rear Right Speaker and then you'll have RCA