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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)

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.

They get off the frequency when heated, might not pass FCC testing.