No Interior Lights, Head unit, Clock, MPG, Keyless Entry?

I believe the issue came from a bad wire harness for a new head unit. I purchased a premade harness for my year car and the type of head unit I was getting. I hooked everything up, but the new radio didn't work at all. I put the original Unit back in. After that the original head unit wasn't working either. That's when I found other problems. The overhead light not working, the clock, MPG screen, and keyless entry.

So far, I have tried checking the fuses, unhooking the battery for a little while; trying the unplug it, plug it back in approach. No codes.

Thankfully all the exterior lights are good. I Drove the car around the block and there doesn't seem to be any other issues.

I'm worried there is some kind of ECU problem. I am hoping that there is some kind of simple reset option.