Video link : 27. září 2023

 

Huh I'm wondering if it's your driver's seat and its position. Can you try 80km/h and adjusting your seat to see if the sound changes? I think I get this in mine but I tend to ignore the squeaks and rattles.

 

Unfortunately, it wasn't the driver's seat either

 

To my old ears, the sound in the video is more like a 'rattle' than a 'squeak'. Loose coins or some such thing in the door pocket perhaps? If it is in fact a squeak, I would try some rubber lubricant on the door seals.

 

When I drive off road, the unibody twists enough so the driver door seals squeak.
Put Petroleum Jelly on a soft cloth and wipe it on the rubber seal and the car body.
Just a very thin film. Wipes off the dust and allows the rubber seal to slide against the unibody silently.
Silicone spray lubricant would probably work. You might be able to buy something else locally that works.
Works good on the liftgate so the liftgate doesn't get stuck closed.
Put some on the fuel cap cover rubber seal so it doesn't get frozen closed in the Winter.

 

Petroleum based products can be harmful, in the long term, to some types of rubber. A silicone based grease might be a safer bet. Sil-Glyde works well for me.