I've bought an Audi Q2 not long ago and as I'm making my way around the car to get familiar with it
I couldn't help but to notice that there's a small plastic cover on the rear bumper.
After opening it I've noticed a long spiral hole which I'm no wiser what it is for.
If anyone can please shed some light on that subject for me please as I didn't have a car with that before, and If I did,
then I've never payed attention to it

Thank you!
(I've attached a photo as an example)