For anyone who has a Subaru and wants to get rid of this there is an aftermarket part you can install to bypass the telematics radio without losing access to any other features (if you just unplug it I think speakers stop working)
https://www.autoharnesshouse.com/69018.html
It’s $80 for the one that retains the OEM head unit, but I’m thinking that might be worth it.
What do you mean by google knows it is you? Is this about google fingerprinting you and giving you search results that are only for you? Or because you are signed into a google account for YouTube or gmail or something?