Thanks for all the info.
As I understand the old types Fiat 500 have 87 bytes
The newer types have 157 bytes?

is there any overview regarding what Byte has what options?

Hi Good to know that date and time issue with facelift type cluster in a pre-facelift type car, can be solved. What type of radio did you install and is the radio communicating with cluster (like radio station/song titels etc) and are steering wheel buttons working