I have an IPhone 6. The ringer volume over the Bluetooth is really loud. How can I adjust this? A similar post was posted in 2012 but no one responded then. I appreciate your help!

 

I found what looks like the answer. Saw a similar post on the Toyota forum. As the phone is ringing when on Bluetooth, use the steering wheel volume control to turn down the volume. It seems to fix the loud ring without effecting the phone conversation volume or the audio system volume.