Name: Original Bluetooth Transmitters Car audio modification connector. Type: male plug to wireless female plug Suitable for new Pioneer audio modified CD tail wire to European non-destructive wire harness Pioneer wire harness feature: 1. When the original Bluetooth Transmitters Car is refitted with a socket audio head unit, use this line to plug in the new audio head unit and the original Bluetooth Transmitters Car line plug. No wiring required! Quick and non-destructive installation without disconnection! Precautions: 1. As we all know, different computers display different colors, the color of the actual item may be slightly different from the following pictures. 2. If you find it difficult to choose the size or have any questions, you can contact me at any time, we will give you some suggestions, but this is just for your reference. contents include: Bluetooth Transmitters Car audio modification connector 1 (subject to the actual order)