this is my first radio install and im kinda lost.there are 8 speaker the radio but only 6 coming from the car, plus a blue wire and i dont know what that shits for. Another thing is that there are 4 power wired from the radio but 5 from the car. i know which wires to math for the battery and theignition but i dont know what to put the ground wire or the antenna wire to or what to do with the extra wire coming from the car. i guess what im really asking is what goes with what. PLEASE HELP. NIGGA IN DISTRESS!!!