Help linking UV map to texture

So I’ve been following this tutorial, which was done in an older version of blender, where I can’t find this one thing the maker pressed.

At around 26:30 he speaks of a special setting that must be pressed in order to make sure it’s UV mapped. I can’t find this on the newest version that I’m using, and I think that’s why my material isn’t working.

Any help is appreciated, thanks!!!

found it somehow idk mods can delete this post idk how