90k miles if that matters

I can’t for the life of me figure this out. I’ve replaced every bulb in the tail light/ brake light with 1156 bulbs. I’ve checked every fuse. I’ve scoured forum posts from 2008.

The dash lights up and the radio also dims like the headlights are on when the headlights are off and I press the brake.

I’ve checked the switch that activates the brake light and it’s fine. If that was busted the brake lights would be on all the time but they are not. They are only constantly on while the headlights are on.

Has anyone had this issue before??

It’s starting to feel like a Toyota Scamry lol

Seriously though. I would love some input. Or even better if you’ve had this problem.