Hello, i changed the car battery today and when started it asks for a radio code. I have a blue card the dealer gave me when bought the car, 500 sport bianco, which of the 2 codes is the radio One? One says mechanichal and the other says electrónic.
Please help me since Fiat is out of colombia south america and i dont have any available help.

None of them.
You need a code for the radio/cd unit