Unhook the negative black cable from your car’s battery. Remove the dash board and the old radio. Check to see if the wires go into the old radio one by one or through a wiring harness. If it is a harness you can use another harness and connect them all in one shot. Connect each wire for each speaker one by one. Connect the ground to a metal connection on the back of your new unit. Connect the power wires to your new raido. They are both red and your manual should indicate where they are connected to the back of your cd player. Plug your car battery back in and test the cd player. When it works slide the cd player in and secure it.