But progress will have its way, no matter what happens. So in comes the "bluetooth touch adapter". Instead of a phone-specific adapter, this is a small touchscreen device that slots into the UHV dashboard mount. Connecting a phone is very different now:
- the Bluetooth Touch Adapter connects to the "VW UHV" device via bluetooth
- the phone connects to "Touch Adapter" device, also via bluetooth
But it's not just good news: because the audio link from phone to car isn't direct, non-call audio functions don't work. The phone thinks it'll receive audio through BT, so doesn't use its own mic, but there's no BT audio feed because the BT Touch Adapter knows there's no call going on. And maybe worse: from time to time, I've experienced connection problems in step 1: the Bluetooth Touch Adapter fails to connect with VW UHV. With the limited UI of the device, this is almost impossible to troubleshoot. This seems to happen mostly after I've unlocked the car, and then closed it without ever turning on the ignition. On opening and starting the car minutes later, the connection failure happens.
the only remedy I've found is to turn on the ignition, "open" the VW UHV for new connections (press the phone button on the steering wheel twice), and keep doing that (every 5 to 10 seconds) until the unit connects. If it still fails, keep "opening" the VW UHV unit and use the "Settings", "Bluetooth", "Connect UHV" function on the BT Touch Adapter to retry. I'm hoping this will be fixed in a firmware update some day...