Adjust volume for Motion Warning

Please make the volume of the motion warning adjustable. I have been adjusting the overall volume trying to change how overtly loud it is. Then I just found that it is not adjustable. Please find a way to make the volume of the warning adjustable. I want to use it but I simply cannot have it come on as loud as it is and disturb all of the nearby neighbors, which it is doing. Great feature but bad implementation without being able to control the volume in all of our individual settings.