Well, I removed the telematics module from my car. But it already stopped working because it was 3G only. The car was built in 2014, shipped with a 2G modem that was replaced at Ford's expense when 2G went offline shortly after the car was sold.
My other car with telematics was built in 2016 with a 3G modem that also no longer works.
For my car (2024 GR Corolla) you can pull a fuse that goes to the telematics computer.
The car has a bad habit of calling the emergency hotline on a race track if you go over rumble strips (those painted red/white strips) because it shakes the car so violently I guess. Popping the fuse will make it stop happening.
On my 2021 Camry, the fuse is labeled `DCS` — the only caveat is, it disables the front-right tweeter (there is a bypass, but requires you to remove the front dashboard and install jumpers across the DCS connector).
worse in subaru's... both front speakers AND the mic. bluetooth phone calls no longer work, and, your music only comes from the back.
similarly it is /possible/ though a giant PITA to take apart the front of your car and make those work again, per some blog post i saw 4 years ago and can no longer find.
I think this is also true on the Toyotas, but I do not carry a phone with me so it's just me streaming tunes on the XM radio [don't think this tracks/listens].
>your music only comes from the back
However, you barely notice the single missing tweeter, and it is *but a small item on my car-care maintenance list [to add back the sound via harness jumpter/bypass].
