Good morning in the round, in my V70 I installed the Blaupunkt Bremen SQR 46 DAB and am super satisfied. Everything including FM reception works great. Now I would like to use the DAB functionality of the radio via a Blaupunkt antenna splitter, however, ask me whether my antenna is active or passive. On the one hand, the disc antennas are installed in the vehicle, on the other hand, the previous owner (which I can’t ask) has installed a roof antenna. Which of the two Unfortunately, I can’t say that systems are active (or do they work together?). Is it possible to determine on the connection cables for the radio in the radio shaft whether the antenna construction in my car is active or passive? Thank you for your feedback