Volume issues with update to iOS 8.4
I've updated my phone to iOS8.4 in the last 48hrs and the volume for my music has changed drastically.
I used to be able to listen to my iPhone in the car on the car's volume 20 setting. I could just drown out the noise of the engine and have a phone conversation at this volume. iPhone sound is maximum also.
Unfortunately, since updating I have been unable to do either of the above on the car setting that I am used to. I refuse to have my car volume on the maximum, as I frequently catch the radio function which is near my steering wheel and I'm worried about blowing the speakers if I do catch it!
I have spoken to someone on Apple support chat who asked me to do a general reset to default settings, this didn't work. I have tried to increase the volume of the music in the iTunes option which partly rectifies the issue - but I'm not happy keeping this as a 'fix' in the longterm.
The apple support person said that they were unaware of anyone else having the same issue, and they said that no-one in their group had heard of the issue either.
Help please?
iPhone 6, iOS 8.4