Play sound at location volume

so i want to play a sound and the volume multiplier is based on a float var
everything is fine
but i want to change the var value = change the volume (in game)
all fine i changed the var value but the sound volume didn’t change well because it’s already played so how can i update the sound like:

i just make var = 2
the volume goes up to 2
i’d like to not change the method because i’m planning to use it a lot with 3d sound + 2d sound

never mind i had to spawn the audio as a blueprint and edit all