thanks Jlet.

I used device mode for my amp (VSA-AX10i) but that didn't work
I have looked in the discrtete code hunter but no luck
I have tried using the Select code from a Pioneer VSA AX5 but this didn't work. I have not tried this in device mode, just within the activity, so this is my next step when I get a chance.

Any thoughts on how to get the code? Maybe someone with the original remote could find a way to learn it and let me know. Hopefully Harmony would then take it and update their database

Good advice for the future. If I ever get this to work again I will certainly be much more cautious before introducing "updates".