Sudden multiple electrical issues

Would the BCM throw a code? Because I’ve got no stored codes in the system on the code reader. It also seems that the only system’s not affected by this problem are the starting, charging, engine operation, and brake lights and turn signals. To me it’s almost like something with the alarm, and aren’t most of these things run through the radio/navigation display? Thanks for the answers and help.

Okay, broke down and took truck to dealership to fix, they got the headlights working, the A/C, gauges don’t zero out, trip still resets to 0 when turned off and back on along with the fuel mileage average, interior dome lights only come on with the truck in ignition on mode, but yet the windows will roll up and down with the ignition off at any time day or night. The dealership left part of the alarm system out of the truck they said it was just the motion part of it, and we were told that the rear view mirror was the problem because of the necklaces hanging from it it was causing a fuse to blow so they left it unplugged and wanted $700.00 plus for a replacement mirror. The key fob still doesn’t work to unlock or lock the doors and the panic button does nothing. I got charged $786.00 for them to basically tell me the rear view mirror was bad, but when I got home and plugged it in no fuse has blown as of yet, not to mention that they had the truck for 5 days and left parts out of the alarm system upon return to me. What sensors are in the rear view mirror besides the auto dimmer and the compass? I believe that they didn’t even bother checking the Body control module at all or even disconnected the battery! I’m going to go talk to them to find out just what they did and find the parts and replace them myself this time. Sorry about the rant I’m just really upset that the dealership didn’t get the problem fixed for that kind of money and time. Thank you for your help you guys are the best when it comes to help online. Thanks again.