Wet car smell

[Frimley111R]

Our 2016 Audi TT cab leaked. Like a bucket of water emptied inside type of leaking. I had to take the driver's seat out and pull/cut out all the sound insulation that was like a huge wet sponge, dry it indoors and put it all back. Despite clearing all the roof drain holes a week later it was wet again. So it sits with a cover over while it rains and does not get used much.

I have that lovely musty smell inside the car, its not too bad and maybe I've just become super sensitive to it but for me its not a good kind of fragrant.

Is it just the last bit of drying out/damp in it that causes the smell and it'll go once total dry or is there something else causing it?

[Belle427]

Would be beneficial to dry it out and air it with windows open next time we see some decent weather, Its probably still damp.
If all else fails I have read of people having good results with using ozone generators but not sure if its something a local detailing company may have.