I wanted to update my navigation system but couldn’t find the SD Card. After having a warranty issue repaired, I asked the Smart Service Manager at the MB dealership, where the SD card was located and he couldn’t find it either. He hit the button to remove the card but we still couldn’t locate it and I temporarily lost all navigation. Does anyone know where the SD card is located and how to access it? Online videos indicate between the seats or under the driver’s armrest but it is not in either of those locations.