I'm not sure how much work is involved with that but I will be able to tell in just a few seconds if that "fixes" the problem.

What I am probably more concerned about is that if this is normal operation for the RDS-AF (when switched on) then it's basically useless. The way I understand it, it's supposed to retune in quiet periods so as not to interrupt things. However it seems to ignore that rule and constantly retunes. You can see it doing it on the new special AF debug screen.