hey, I have a 93' 325is. I dont have an alarm in my car and i want to get one. Was my car made with a factory alarm and someone lost the transmitter or do I just need to get an aftermarket one installed? It just seems weird that bmw would make a car without an alarm. If i do need to get one istalled, my car says its pre-wired, how plug and play are the alarms really? would it be difficult to put one in myself?
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