Not able to pass call audio to car stereo

[RMPCTek]

Hello everybody, i'm new to this forum.
I have a Huawei p8 lite with android 6 (stock rom) and I'm unable to pass the audio from calls to my car stereo (sony a4000-bt), although i can pass the music. My gf p9 lite can use the car bt to do calls and music.
Thanks for any advice!
Sry for my bad English, i'm Portuguese.

P.s. FOUND THE SOLUTION!!
After two months with no luck passing tha call audio to my new car stereo, today i had to disconnect the radio, and it resseted itself, after connecting my phone via bluetooth it all worked like a charm!!

 

[B. Diddy]

Welcome to Android Central! Go to the Settings>Bluetooth menu, tap the gear icon next to the car system, and make sure Phone Audio is checked on.

 

[RMPCTek]

Tks for the answer, atually phone audio was on. Today for orher reason i had to take the radio off, after re connecting the radio (which reseted due to lack of power) i connected my phone through bluetooth and surprise, it is working now!!