It seems like this is not enough:
https://www.tacomaworld.com/threads/simpler-solution-for-dis...
The most reliable way to permanently silence the cellular modem is to pull the relevant fuse. In the above case, this also disables the microphone, which I think is a positive. Unplugging the DCM entirely, however, seems to disable to right speaker, which is wired through the DCM for some reason.
Would be darkly hilarious if they were using the speaker or rear defroster as a cellular antenna.
(Yeah, technically horrible but I’m sure someone will find a way)
Funny enough i was just recently thinking about how most defrosters would probably make a great antenna with minor modifications
Just recently? The industry has been thinking about it[1][2][3][4] since before most of us were born.
[1] https://patents.google.com/patent/US3576576A/en
[2] https://patents.google.com/patent/US3611388A/en
[3] https://patents.google.com/patent/US3971029A/en
[4] https://patents.google.com/patent/US4095228A/en
They get off the frequency when heated, might not pass FCC testing.