It’s coming from the left side of the car behind the steering wheel and it can also be heard from outside. It’s like a squeaky noise and starts doing it after starting and driving it.

 

I don't hear anything squeaky in the video. But these cars had lots of rattles and squeaks caused by various things. If you do a search for squeaks and rattles and other keywords like dashboard if it sounds like it's the dash that's squeaking, you'll get lots of threads about how people dealt with them. There's a giant thread that summarized a bunch of the different common squeaks that I remember reading forever ago. You'll find it if you look.