Poor DAB and DVB reception (standard MMI)

[Horrgakx]

Hi, I'm getting very poor DAB radio reception and DVB TV reception.
In my area I would expect the DAB National broadcasts to have a good strength of signal and so receive it wherever I drive. And probably the same with DVB too, a transmitter is high up on a nearby hill.

However I constantly see the DAB dropping back to FM, and the DVB signal drops out more than it's in.

Are there any common issues with reception in the A8? What can I do to check?

Thanks!!



PS - worth noting that the passenger is viewing the DVB when driving, not the driver