I spoke with Dasaita after sales service, but they haven't any issue.2. USB port in under your arm rest, does not share data, only powered USB. That is because the USB port is connected to Mazda’s original bluetooth adapter, that redirects the USB to the infotainment system. But because we’re not using that bluetooth module but the built in one, no data is transfered. Easy fix is to rewire the USB from that bluetooth module to your new android infotainment system.