Sorry for the delay in updating this thread, personal problems have distracted me over the last few days.
Drove to Chepstow last Friday, spent the weekend there and returned on Sunday.
The good news is that I had Smooth Easy playing all the time and it worked perfectly. Really surprised that the only time it weakened, but not enough to swap automatically to FM, was in the dip near Chepstow Parish Church.
I do not really understand this sudden improvement. Last week I did remove the aerial preamplifier to take a photograph of it alongside my original preamp, then replaced it in the car.
So I guess simply taking the preamp for a walk away from the car for ten minutes then refitting it might just resolve the reception problems for others.
Remember I am only a simple old fogey and the silly easy fixes suit me down to the ground.
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Ray at Wigan Pier
2014 A8L D4 4.0TFSI Gold (Sticker says "Beige") Can't leave you in a black smoke cloud anymore..
In progress, Nothing left to do.
Gone 2004 A8 D3 3.0 TDI. Ebony Pearl Black (with little bits of other colours and glitter)