I'm curious where Carguy is getting his info from because I have a 2015 MeeGo Ultimate. Maybe he means 2014, since I'm pretty sure the first gen units were Windows?
As far as the 2018 headunit goes, it's looking like all the fancy "sound processing" features are actually being handled in-house and not on the amp. So it may be possible to bring Quantum and ClariFi to the older head unit.
As far as the difference with the 2015 headunit hardware goes, I think the RAM modules may be a smaller capacity, which may limit the overall capability of the system. Although, Hyundai did yank all the applets that would have used the available RAM, so there may be some free now for "other features".
2015 MeeGo
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