Normally I like to keep my iPhone volume quite low, so that when audio plays, it isn't too loud at first.
However, when I connect my iPhone to a Bluetooth speaker, I want the iPhone's volume to be maximum, so that the audio that gets outputted to the speakers isn't too soft, and I can from then on control the audio with the speakers instead of the iPhone.
Is it possible to have the iPhone automatically increase its volume to maximum only when connecting to Bluetooth speakers?
For instance, when attaching headphones to the iPhone, it has a different volume setting for them, versus without headphones. I'd like something similar when connecting Bluetooth speakers.