1Product Function: Able to be helpful to convert your original radio harness adapter to standard Iso connections, providing convenience for future use. 2Useful Tool: Will allow you to the install a new or used aftermarket stereo into your vehicle, having new feelings in the old car. 3Easy to Use: Wiring harness adapter does not require any wire cutting, soldering or other assembly, very users friendly. 4Simple Connection: Wiring color codes are all Iso standard. You just need to simply plug adapter one end into car original wiring harness, and the other end for the new device. 5Package Content: The package contains only a harness adapter, other accessories and tools need to be prepared by yourself, please make sure you are clear about this.