Hmm, yes, audio definitely seems too much like hard work - I was hoping it would use I2S really

Control-wise though, it's no big deal - you only need four functions to make a fully controllable solution - scan for new stations, scroll up, scroll down, and select. I was hoping it would be possible to simply send the display feedback as RDS-type signals, but it seems that wouldn't be the case.

I'll keep an eye on your thread for developments.