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

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

MX5-NC1 2005-2009 Basic Audio MX5-NC1 2005-2009 Basic Audio
MX5-NC2 2005 - 2009 BOSE Audio MX5-NC2 2005 - 2009 BOSE Audio