Siri Volume when you press the voice button

For whatever reason, the Siri response volume is so low I can't hear it when I press the Voice button and hold it on the steering wheel. Anyone know how to raise the response volume so I can hear it? I tried pressing volume up while Siri is talking but doesn't seem to make any improvement.

Thanks!

 

Yes, I've done that too, no change.

 

I tried adjusting the phone volume on the left side of the phone, immediately after Siri Began talking and that worked!!! Thank you so much for the heads up!