Add Entune onto Tier 1 Gen 3 2014 Prius

Hi! I am a new member of PriusChat, which is so fun around here.
Question: Is there a way that I can add Entune software or hack latest Entune onto my current software, which does not have Entune, at all? It looks suck and it is so laggy. If there aren't any update then should I upgrade with aftermarket headset? And which one would you recommend me to upgrade to? If it possible... can I just buy headset from the latest Prius 2017 - with Entune and everything, and replace it with my current headset?