Hello,
I have 91 525ia (manufactured 10/90). The battery is in the engine compartment. The previous owner didn't have the fob. I am thinking to buy one from Ebay. However, I need to make sure if the car has the alarm or remote keyless system installed already. The car does have a red security/theft-deterrent LED on the instrumental panel. So, where or how can I find the alarm/remote keyless system?

Thanks,
Jerry
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