When i am using android auto and on call the bluetooth will disconnect every 13 minutes. I have attached my build info 
@matt breaux
Hello.
Thanks for your message.
Please try to do as follows:
1.
Please check whether WiFi antenna has been screwed well.
2.
Please confirm the WiFi signal is 5.0 GHz Band:
Settings > Network & internet > Hotspot & tethering > Wi-Fi hotspot > AP Band > 5.0 GHz Band.
3.
Please modify the Carplay Port:
Settings > Car Settings > Factory Setting(password: 0000) > ARM Setting > Carplay Port > select 2 or 1 to test which one can work.
If no luck, please write a mail to our team and indicate your Order ID# in email subject.
So that we can help you better.
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