When I Bluetooth music in from my iPhone the volume is much lower than the FM radio or other sources. I’d say full volume (40) is about as loud as 25 on FM. I couldn’t find any setting to adjust either.

Has anyone had this issue and found a solution?

 

Sometimes there is a problem that some Acura bluetooth modules do not want to work correctly with phones with a newer version of bluetooth. The problem is solved by buying modules with a newer firmware. But first I would try to do a full system reset and re-pair the devices.

 

Additionally, make sure the settings are correct in the app you're using to play the music. A lot of them have ways of being able to lower the overall volume to sound very level.

 

The volume coming from my car bluetoooth varies with the valume setting.on my iPhone. Due you have the volume turned up alll the way on your iPhone?

 

That worked! Thanks so much for this comment. I had tried the volume on the phone but if I hold the volume up button for a few seconds it adjusted it perfectly. On my other cars that use CarPlay or Bluetooth, volume is delegated to the car volume control and the phone volume doesn’t do anything. This system works different. Thanks again!