What you have to do first is a little home work. you must find two wiring diagrams one for the radio. the second for the car that you want to install it in. after doing so you match up the two diagrams and plug your wires together. examples: the red wire from the car(usually 12volts+) to the power into the radio,(power to power0 the ground wire on both wire diagrams is usually black if not maybe green.(GROUND TO GROUND) the speakers -well you got front and rear,along with front and rear you have left and right. now to make things even more fun each speaker has a positive and a negative,