Voice guidance muted when music playing

Hi folks,
Have Android auto on pioneer next 8000. F70 dab European model. Works great but recently when playing music from play music or Spotify voice guidance from maps isn't working. Instead of voice music mutes but no instruction is read out. With music stopped voice guidance works perfect. I could swear I changed some setting recently which said mute music during voice guidance but can't find any more.. Phone is htc 10
Thanks
Mick

Static coming from speakers even when muted

When playing a game with the speakers muted i get a static noise coming from both speakers, is this a fault? it just wastes battery having the speakers on when i have them muted playing an annoying crackling sound. They stop as soon as headphones are in.

Primary microphone stopped working in calls, 90% muted

Hi all,

I've got a weird problem with my phone.
The primary microphone has stopped working during calls. Well, for the most part. If I blow into the mic, you can hear it. It sounds it's under water.

So i went into the xperia service test menu, and confirmed that the primary microphone is at fault. The secondary microphone still works.
Now, the weird thing is, I installed an app called "Microphone" which allows me to test the mic by outputting to the external speaker.
In this app, the primary microphone works 100%. It's not using the secondary mic on the back, but on the front. I can confirm accurately by blowing into the front mic or wiping my finger over it.
Yet, in calls or the service test, people cannot hear me.

Any ideas?
Thanks