Bluetooth AUX Music Cable Interface Adapter fully compatible with high support for MMI 3G interface system. Suitable for AMI MDI MMI after 2010, including R7, S5, A6L, A8L, A4L. Compatible with YouTube, Spotify, iTunes, and other audio applications. Please check if your car has the AMI interface before purchase. This product is not compatible with models lacking the AMI interface. Bluetooth transfer adapter cable enables online use, real-time music playback, and timely updates. Operates on a voltage range of 5-12V, adjustable to the respective environment. Features Bluetooth 5.0 with a high-speed master chip for distortion-free transmission and high-definition audio quality. Enjoy wireless music streaming through your car radio. Easy to use—simply connect upon entering the vehicle. Supports Bluetooth devices such as smartphones and tablets. Designed for cars with a 3G system or higher and a built-in music interface. Note: Measurements are manually taken; allow 1-3 cm variation due to lighting and display differences. Color may vary slightly from the image shown.