After six months of use, I've pretty much given up trying to pair my XS Max with the Pioneer bluetooth receiver in my car. This same receiver always paired and played music seamlessly with my 7+, and an older model did just as well with my 6+. But the Max has been inconsistent to the point of not being worth the trouble anymore. It sometimes pairs automatically when I start the car; other times it requires a manual pairing (ie through the bluetooth settings on the phone). But in almost every case, it drops connection after about two minutes and requires a manual pairing to resume...which sometimes works, sometimes does not. Generally when the second pairing does work, the connections holds as long as the car is running. But every time I start the car I have to go through the whole process again. So if I'm running various errands, it's pointless to even try to play music through the receiver; never mind the fact that it should be pairing and playing seamlessly at all times. I've tried "forgetting" the receiver and doing a completely new re-pair, but that hasn't resolved the issue. And the bluetooth pairing works fine with my AirPods (the only other bluetooth device I have). I haven't seen this issue widely reported, so maybe I just have a bad phone?