I've had different results from a Bluetooth standpoint depending on whether I pair device to car, or pair car to phone. My suggestion was based on the thought that the process of pairing may make a difference. But if you've cleared both and tried re-pairing with each approach, you've addressed the suggestion.Already tried everything. Even Apple tech support can’t figure it out. Also forgot to mention that not only my watch but the calls are not forwarded to my iPad Pro either. And as I mentioned before I reset the car audio system to factory settings and I recently upgraded to 12 pro and still the same problem.