“No Siri connection” while listening to music in car thru BT

[gybe77]

Listening to music thru BT on Xs Max and Siri doesn’t connect on my watch (watchos5). But when I pause or don’t listen to music while BT connected in car, Siri on watch works. Any idea what’s going on?

 

[Roci910]

I'm having this exact same problem with an iPhone 7 Plus (iOS 12) and an Apple Watch Series 3 (watchOS 5). While music is playing, about 80% of requests made through the watch end with the "No Siri Connection" error after displaying "Hold on..."/"I'll tap you when I'm ready..." for about 30 seconds. When there's no music playing, the watch works just fine.