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Find the telematic's antenna, and put a 50ohm resistor across it. It can scream into it's own private void.
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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.

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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)

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Funny enough i was just recently thinking about how most defrosters would probably make a great antenna with minor modifications
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I Have No Antenna, and I Must Transmit.
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I am stealing this for the name of my first album.
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