The headunit was trivially easy to hack iirc - was based on an old version of Android obviously without security fixes, think it was from a website called mazdahacks? From there I had full AA without restrictions.
No idea if the site is still around but...
Also, the Fiata is based on the ND1 and so still has the smaller engine, but I'd totally get a Fiata over an ND1.
Mazda hacks is still around but looks like there's some more protection in it than there was a few years ago so it's harder to setup.