Radio code alfa 156

[La Scuderia]

Alfa 156 high cd gta
part number 7640379316
serial number 815 bp03792653335

[Goncalves]

Alfa 156 high cd gta
part number 7640379316
serial number 815 bp03792653335?

Please BLAUPUNKT made units have 14 letters+digits long serial numbers and are printed on the label or engraved on the metal case.

Example;