I was just curious to what the people who have installed an
after market alarm have experienced in regards to the
OEM Immobilizer Anti-Theft that comes standard.

Can you make them work concurrently or is it one or the
other. I am especially interested in peoples experiences with Alpine Alarms.

Thanks,

 

Factory Immobi uses the ECM and not a seperate unit, any alarm shoud work.

 

An Alpine alarm will provide you with extended protection capabilities whereas the immobilizer system only defeats attempts to start the car without a properly coded dealer made key. The alarm will enhance anti theft protection if you have options installed such as a motion or also what is known as a microwave sensor which would be hidden in the interior of the vehicle in order to detect intrusion, a shock sensor to detect impact vibrations from forced entry and/or a glass breakage sensor which some manufacturers have discontinued but consists of a microphone that picks up certain sound frequencies such as metal on glass.