Got my radio module & HMI back from th3magpi3 yesterday...all installed and working great in my 2014 Silverado!! Thank you Chad!!
Radio Module #84222864= $100 shipped (Ebay)....from a wrecked 2017 GMC Sierra. There are 3 variations of these....from Work Truck's, From Non-Bose(UQ3), From Bose(UQA) vehicles. Make sure you get the correct one & it has a 2016+ date on it for CarPlay/AA.
2.5 HMI w/Nav #84331503= $200 shipped (Ebay)....per Google, from a 2019 Buick or Chevy Impala?? seller could not confirm exactly. Make sure it's from a US vehicle if it has factory Nav, a few Ebay auctions out there with Europe maps.
New USB port in arm console = $30 shipped (Ebay)....2 USB ports and headphone jack. One's with the card slot are not correct/need to be replaced.
New Nav Antenna = $30 shipped (Ebay)
Radio Module & HMI shipping to th3magpi3 = $26....For VIN Programming...Honestly was a little reluctant sending to Canada....no worries though, takes about a week to get there & another week for return shipping from him.
VIN Programming & Return Shipping = $125
TOTAL = $511 (I now have Factory Nav & Apple Carplay)