DAB Aerial - Open Circuit

[Watson306]

Hi All,
I've just purchased an A4 B8.5 3.0tdi Avant Black Edition.
It's fully loaded and I'm loving it.
It has a few bodywork niggles that I'm going to work my way through and 2 faults.
One of which is a parking sensor which I'm on top of.
The other is this:

Fault Found:
02877 - Digital Radio Antenna (R183)
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 7
Fault Frequency: 1
Reset counter: 153
Mileage: 121626 km
Time Indication: 0
Date: 2019.10.20
Time: 15:08:59

It doesn't pick up any DAB stations, and initially I thought it was just a signal issue but after I had it scanned obviously I'm thinking I can get to the bottom of this.
Any ideas what maybe causing this?

Thanks in advance

[VAG-Abound]

Couple of things that come to mind is that a DAB radio may have been added by someone without them realising there was no DAB capable aerial, it may simply be unplugged at back of radio, or one of the intermediate connections in the headlining may have come adrift. Maybe use the retro-fit list here as a fault checking guide: DAB Radio - Retrofit? - Page 2 (not withstanding layout is A6 )?