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Q: Compatible anti theft system to replace

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The anti system was stolen and I want to know what other cars have the same or compatible system I can use to replace it
My car has an automatic transmission.

The only system that would be compatible would be another 1999 Cadillac Eldorado and this would not work since it would only be programmed to work for that vehicle. You would need new parts from the dealer and have it programmed to work on your vehicle.

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