disabling DCM / telematics in 2025 Taco

[Dayen]

I would recommend not pulling the GPS antenna wire. I think it's the center one. GPS does not transmit. It will theoretically prevent the vehicle from storing location data locally, but I don't think it's doing much/any of that.

The head unit furnishes the GPS data to Android Auto and CarPlay. It's much more accurate than it is coming from the phone, as it's roof mounted vs under a giant sheet of metal. You'll get a less jerky Android Auto/CarPlay map if you leave the GPS intact. I'm assuming it still actually works when the telephone antennas are terminated...will find out when my cables/terminators arrive.

Also on the subject of cables and terminators.... One of the amazon reviews is saying that particular terminator is crap and not actually terminating the signal. I ordered some from Mouser Electronics instead. 712-2467938-1 terminators and 523-095Z820159012 cables. Definitely more expensive. Probably safe to still buy cables from amazon. TBD if these work well at all, they're in the mail at the moment. The Amazon ones might be just fine, but I've 100% had it with that site and its fake crap.

Thank you for this tip, I have noticed that my GPS in Android Auto acts quite strange sometimes because the antenna is unplugged. Do we think that it's using the port as the "antenna" anyways instead of your phone's GPS? I will probably plug the GPS antenna back in this weekend when I have time and see how it does

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