hopefully the unit has a sticker labeling what wires are what. if not you will have to figure it out.There's 4 sets of wires that all have 2 wires that are the same color these are your speakers + and - there should be 3 more wires a Hot (positive) a Negative and a remote wire...(hopefully u have no automatic attena
The Hot wire should be red
negative should be black
and the remote should b blue
hope this helps