the sound card is working properly as an additional audio input on Windows and Mac computers. It does not even need to install the included software. I had bought to the USB input of the multimedia interface of the Comand 2.5 in Mercedes W211 an audio input via USB to realize the instrument per se. It should above external Bluetooth music streaming to be made at the same time charge of an external Bluetooth receiver, because can innately the Comand 2.5 just making calls via Bluetooth. Unfortunately, my plan does not work, because the Comand 2.5 to the USB interface only recognizes storage. An attempt was worth it. I am nevertheless satisfied with the device.
