; Mazda MX-5 (3rd Gen) NC Facelift Original radio options - InCarTec

There are multiple original radio options in the Mazda MX-5 (3rd Gen) NC Facelift, which option is the original fitted system?

MX5-NC3 2009 - 2015 Basic Audio MX5-NC3 2009 - 2015 Basic Audio
MX5-NC4 2009 - 2015 BOSE Audio MX5-NC4 2009 - 2015 BOSE Audio
MX5-NC5 TomTom Navigation MX5-NC5 TomTom Navigation
MX5-NC6 Alpine AVN2 MX5-NC6 Alpine AVN2