How can this be stopped, from a technical perspective? Can I wrap the comms in a Faraday cage?
Obviously it would be better to have this action be illegal. But with legal privacy protections eroding in the US and other countries, it seems prudent to have a better understanding of the systems involved in the immoral surveillance.
I've had good luck with pulling service manuals, finding the telematics antenna connectors, and unplugging them. It's popular to pull the telematics module fuse, but that typically disables internal microphones and GPS that are used by android auto and carplay. This severely degrades features spouses expect to just work. The antenna pulling is a much lighter touch.
What sucks is that at least with my car, if you pull their access, you also lose all your remote access as well, and the ability to receive updates.
Vote with your dollars. I know one brand that has the most leading edge tech and does not sell my data so I bought from them. However they do use my anonymized data to train models for a future FSD capability but only because I opted in to that.
It is possible to remove the hardware itself that is responsible for this, but depending on the car it can very involved: https://arkadiyt.com/2026/05/13/removing-the-modem-and-gps-f...