Radio, heater and command center lost power?

These few things do have anything in common outside of the BCM so I would suggest picking one of them and figuring out what the issue is with it and then if that fixes all of them then that is a bonus.

If not then we need to move onto the next item.

Here is are a couple guides that will help with testing:

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Below are the wiring diagrams. We need to start with checking the fuses and then checking power at the radio. If you have all power and grounds then the radio will most likely need to be replaced.

Please run through this and let us know what you find. Thanks