Hello, I connect my mobile (oneplus nord) by BT with a tomtom Rider 450 and this in turn with an intercom Sena 10c pro. Calls are transmitted through the tomtom without problem. I can answer calls and talk and see the information on the tomtom screen, but the music is not playing. The Rider 450 connects with the mobile only as a telephone and does not transmit multimedia audio. how can I solve that?. Thanks.