Microsoft Cortana to Replace Lexus AI

[chiques]

Has anyone found a way to replace the Lexus voice command system with something such as Cortana or Siri? This is a wonderful vehicle but the voice command is dangerously primitive compared to a handset auto assistant AI. Worst of all is it's so SLOWWWWW and it freezes up my music for such a long time. I spend more time looking at my phone trying to override it than actually using it.

Any tips are helpful.