Having problems finding the right wire and its corresponding function? Here are all the Aftermarket Car Stereo Wire Colors and their corresponding function to help you through your installation and aftermarket car stereo problems. Find the matching wires for your year, make and model vehicle and match the functions with the aftermarket wires shown below. These wires are consistent with all AFTERMARKET radio wire harnesses (the one that plugs into the back of the radio). Including Sony Wire Harnesses, Alpine Wire Harnesses, Kenwood Wire harnesses, Clarion Wire harnesses, Pioneer Wire harnesses, Dual Wire harnesses, JVC Wire harnesses, and etc.