Bluetooth Music Adapter for BMW E46 E39 E38 Business BM24 Rundpin (1pc, Black) BlueMusic audio adapter for wireless transmission of music, navigation announcements, YouTube, and more. Title control via radio or steering wheel. Playback starts automatically when selecting the radio source, stops when switching to another source. Telephony is not supported through this adapter (use a separate hands-free device with microphone). Developed in Germany. Integrated amplifier for enhanced audio performance. Supports Bluetooth 5.0 for low power consumption. Built-in antenna ensures stable connection throughout the vehicle. Installation: Minimal installation effort required. The adapter connects discreetly to the back of the radio. Compatible with vehicles equipped with 4:3 onboard monitor located in trunk near radio module. No additional wiring needed for power supply. Radio recognizes the unit as a CD changer; no coding required. Product Specifications: Dimensions: 3 cm Color: Black Package Includes: 1 x Music Adapter