I'd LOVE to know this too! LOL! It might be as simple as a firmware update as well...
Emphasis above mine. Got to admit I don't understand this statement. I get that the 2018 head unit is all new compared to 2017, but every aftermarket unit is also different than the 2017 unit. One would think that of all the HU's available out there, the 2018 Subaru unit would be the most likely to fit, and in particular have the same wiring connections so that steering wheel controls, backup camera, microphone etc. continue to work as before.Probably have to go aftermarket, unfortunately. New head unit from new manufacturer for 2018. Disappointing, but would be surprised if they did the right thing.
Since I buy a car to haul people and things around, not to be an extension of my phone, how well Carplay or Android Auto works or not is of no importance to me. I also keep cars for a dozen years or longer, and, given how these systems are evolving, predict that even a correctly-working Carplay (etc.) implementation available today will not work with phones that will be available three years from now. Experience suggests that the phones have a life cycle of three or four years or so. If you keep new car for only that long, this may not affect you.CarPlay is so god awful on my 2018 head unit I'd almost recommend against buying the entire car because it's so bad. Some of it is because Carplay sucks (no way to set the volume of alerts, so you can be listening to the radio at a low volume, and get a text message or call and it's BLARING and scares the crap out of you) and the other half is because it simply won't work 1 out of 5 times and there's way to reset the radio without turning the car OFF AND THEN BACK ON.
We keep an old iPod Nano (I think it's from the late 2000s) plugged into one of the USB ports (it does not support Bluetooth) and tucked into the cubby hole in the console; it works fine. Even the steering-wheel controls work with it. Maybe try that if yours is failing over a BT connection and see my earlier comments about short windows of compatibility.Hopefully the September Carplay update will mitigate some of the awfulness, but I'm really not hopeful. I'd go back to using my ancient ipod if it even worked properly with the car.