I've considered both options but I would not spend 250 € to change radio and I didn't found a nice digital clock to fit on my Cuore. Daihatsu Italia has sent me an email today to tell me that they will care this situation (a general situation of all new Cuore) but I proposed to Daihatsu Italia to change my built-in radio with a Kenwood DPX 502 U (double DIN) to solve definitively the problem, with my contribution for 50% of its price... stay tuned!