See a lot of questions asked about this and not a lot of set info on the upgrade. Hope this helps even anyone trying to set it up.
**READ ALL INSTRUCTIONS AND WATCH ALL VIDEOS PRIOR TO ATTEMPTING PURCHASING OR INSTALLATION**
Apple CarPlay / Android Auto functionality is not supported in any 2014-2015 (Many 2016) Silverado/Sierra’s. This is due to neither application being available from Google or Apple when these vehicles being built, therefore not an available option during these model years. The following instructions are designed to simplify the process as much as possible.
Three things are required for this upgrade (ONE) Radio Module, (ONE) HMI Module, and (ONE) USB Hub 2016+.
Search around for the modules, they are available for purchase from many different locations. EBay, totaled vehicles, junkyards, or other various websites to find them. AGAIN, if the part numbers are not listed below DO NOT purchase them.
It is highly encouraged to not try and cut corners with purchasing part numbers of modules not listed as they cannot be flashed to work properly.
**DISCONNECT THE BATTERY PRIOR TO INSTALLING FRESHLY UPDATED MODULES**
Trim Removal tool
10 mm Socket
7 mm Socket
USB HUB P/N 13519224 (BLACK) P/N 13509943 (WHITE)
USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITH NAVIGATION. ONLY REQUIRED TO PURCHASE ONE P/N.
USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITHOUT NAVIGATION. ONLY REQUIRED TO PURCHASE ONE P/N.
USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITH BOSE. ONLY REQUIRED TO PURCHASE ONE P/N.
USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITHOUT BOSE. ONLY REQUIRED TO PURCHASE ONE P/N.
Once acquiring the parts you can now send them to be flashed. These modules will be flashed to your VIN and will then be plug and play. Copy the link and follow the prompts.
If you have followed all the directions up and to this point, select yes for hardware match. You can chose if you would like the maps updated on your NAV if you so choose. You will be emailed your order number from WAMS, this is EXTREMELY IMPORTANT. You will be required to ship your parts either FedEx or UPS, they will not accept packages from USPS. You will need to write your order number on the box to ensure your order is properly handled. Turn around is approximately one week from shipment to return. ONLY ship your (ONE) Radio Module and (ONE) HMI Module. Maintain your USB Hub.
Once you have received your parts from WAMS you can begin installation. Disconnect your battery prior to installation.
To install the radio module watch https://www.youtube.com/watch?v=I2MYuuyqLrs. For the purpose of this install start the video at 1:00. Stop the video at 2:04, the radio module is visible with a green connector on the far left. Simply begin disconnecting all of the connectors plugged into the module, once all are removed you can slide the module out of the dash. It is retained only by the tension of the cables plugged into it. Replace with your new module, you can now continue the video and finish putting the dash back together. Stop the video at 4:10.
To install the HMI Module watch https://www.youtube.com/watch?v=sFe2gwlOsD4. Stop the video at 2:00. The module being described behind the crossbar is what you are replacing. Remove all connectors, the module is retained with a plastic clip on top. Installing the module along with the glove box, is self explanatory.
Take note of the plastic tabs on the sides of the USB Hub you are preparing to install. Those tabs can be depressed with a dental pick and gradually removed out of place. Once removed, disconnect the harness and reconnect. Installation is now complete. You can now reconnect your battery and start your vehicle. Initial start up might take a few seconds to initialize, and temperature defaulting to 32 degrees is normal. Android Auto and Apple CarPlay require hardwire connection, so to test functionality it needs to be connected to the newly installed USB hub.
MVI Inc (https://www.gm-navigation.com/) offers kits and other customization options if the above is not something you feel comfortable acquiring on your own.
Hope this helps, should be pretty cut and dry. There might be other methods, but this was the cheapest I discovered. If you have any questions don’t hesitate to ask.