Hands free phone audio low

[BlackGrizzly]

Upgraded to the 8.4 this past week and notice the hands phone audio is barely audible. I can have the audio maxed our and still the phone call is extremely low. I couldn't find any options in the settings. Does anyone know a solution for this?

 

[WTM75]

I was having the same problem, didn’t realize the volume coming through the truck is effected by where the volume is set on the phone. I always keep my phone volume low and I had the truck volume maxed out and could barely hear.