Eximtrade Mercedes Media Inerface MMI to 3.5mm AUX and Micro USB Music Cable for Mercedes Benz Listen the music files in the smartphone or other electronic device via the Mercedes Media Interface (MMI). Connect the smartphone / electronic device with 3.5mm connector. The Micro USB adapter is for charging the smartphone. You have to activate the AUX mode in the MMI system in order to use this product. Please note that you can only change songs from the smartphone, no control over music from the MMI system. The playlist will not be displayed on the screen. Compatible with the Mercedes Media Interface (MMI) of Mercedes Benz. This cable is for music transmission only, phone call is not supported.