I’m picking my car up tomorrow, but I wonder if that’s part of a heating system to defrost that window? I had something similar on previous VAG cars, so will check.
I’m just about to take delivery of an April 2019 Avant, and plan to install a data sim in the centre console to retain connectivity once the Audi Connect expires. I’m certainly not prepared to pay £85/month when a pre-loaded data sim with 24GB costs approximately £40. That should retain my connectivity as it did in my C7 beforehand.