Thank you Rojie for your suggestion and yes I did fit a frequency expander to my previous Alphard and I have to say that this was less than satisfactory. Still I had very few stations I could access, they were not easy to find and these few problems added to everything in Japanese then with this present Alphard I fitted a new Joying head unit. This is so very much better with many other excellent features and Android apps galore. I could access internet radio I suppose but then I do not want to use mobile data so in addition I fitted a DAB+ tuner. Thank you though for the thought.
Peter