Andoid auto + applink = Decreased sound (bass)

[Tnerual]

Hello there from France
I just changed my car (ford fiesta 2017) with sync 3. I have an almost new Huawei p9 lite
When I use unique spotify by bluetootyh, I have no problem.
But when I use the appink (android auto + usb cable) in order to have all the information on the touch screen, I notice that the sound of the music is different (it looks like there are no more bass) It's very frustrating and I confess that I can't find a solution.
I uninstalled spotify, uninstalled android auto, emptied the cache.....
Thank you for your help.

[Tnerual]

Little up:
Today, while hacking to fix my problem, I took a screenshot of my phone (bottom sound button + power), which, curiously, restored the sound impeccable as in bluetooth, but only for 3 seconds....
Once the screen capture disappeared, the sound went rotten again.
I went to tweak in the sound settings (always android auto enabled) and when I go up/down the rulers of call sound, it's the same thing: the spotify sound in the cockpit becomes perfect for a few seconds and then go rotten again when I don't touch anything.
A matter of priority of application or other?
I confess I'm a complete waddle...
😞

[Killertofu2k]

Well, you don't have to worry about the Applink anymore, Spotify has cancled it. But my Huaweii P8 lite did some kind of the same mess. When i got a call i had no Bass anymore. I had to unlock the Phone and go to the Home Screen.

Its Huaweii specific, my LG Nexus 5x and my Girlfriends Samsung A3 2017 did not have this specific error.

[Tnerual]

Hey thx for your answer.
i felt alone these last days 😞
i think you're right, it'a huawei problem.
I tried with a iphone and a leagoo, and everything works perfectly
unfortunately for me 😞
I sent a mail to huawei, i hop an answer and a fix
thx again

[Killertofu2k · Accepted solution]

I tried something from the Google Forums now:

https://productforums.google.com/forum/#!msg/android-auto/nCX0IhMoNYc/nZEu0SHoDQAJ

Basicly: Connect a wired Heatset, go to settings and tone, disable Headset SWS.

[Tnerual]

Thx a lot Killer, this tip works perfectly!!!!!

That's really insane, but it's works.
i just plug a headset at home and disable the SWS.
Then in my car i plugged my phone with the usb cable and ROCK ON!!!
thx again for your help!
🙂