Opting out still seems like they’re pinkie promising they won’t spy on you. There’s no guarantee they’re not using all those sensors on your car to keep tabs on you. The only thing they can’t do is sell your data without getting caught. Are there any guides to install a faraday cage on the telemetry antenna? I miss having dumb cheap vehicles.
Instead of trusting DLink with an off the shelf NAS, it might be easier to build your own with a Raspberry Pi running openmediavault hooked up to a couple of USB hard drives. It’s worked well for me for over 6 years now with no issue and could cost way less.