When the Ariya first came on it was listed with a number of options each with its own order number and increase in app prices , standard, sky pack, tech pack. So it might be something Nissan is doing.
Possibly, but I’ve just ‘built’ a Qashqai Tekna on the Nissan website configurator and the Premium Bose Sound System is a £590 factory optional extra, so I can see no reason why Effkay shouldn’t be able to add it.