I don’t have time to watch at the moment but I do recommend pulling the power on telecom devices installed to your car. They are allegedly usually on separate fuses from everything else.

Bluetooth will still snitch on you, though.

I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy:

• yewtu.be
• inv.nadeko.net
• yt.artemislena.eu
• piped.video