So I’ve been following this thread closely.
Recently I took my truck (2015 Silverado)to get my transmission checked out I thought it wasn’t smooth.Turns out there was a update and they charged me $130. With that simple update it runs way smoother.
so after some digging I decided purchase an VCXNano and paid The $40 subscription.
Updated the radio myself instead of paying the Dealer more of my money ..Now Siri works perfectly .
And I’m able to make calls receive them and text just fine .
I. Got the HMI 2.5 from Dokus
Bought the USB Port
and Updated Radio.