Hearing protection device would actually be nice, like active headpgones (reduce sudden loud sounds and increase silent/distant)

There is a popular mod that lets you do it as a toggle option, but making it more immersive as an item would be interesting.

yeah don't know about that, I find earplugs immersion breaking.

Not the earplugs, active headphones. Earplugs are no-go for sure (but maybe for cars they would be useful)