Cigar lighter / power outlet fuse in the Alfa Romeo 4C is the fuse №F86 in the Engine compartment.
Fuse box in engine compartment
Fuse Box Location
It is located on the left side of the engine compartment, next to the battery.
To access, remove screws (1) and then remove the cover (2).
Please login or register to view diagrams and the assignment of the fuses.