Alarm System made by Directed Electronics .

They make many of the Dealer Installed/OEM systems. they have systems that directly connect into your OEM RKE. Look at the site...Check auto alarms. I have a Merc. Villager with what appears to be an OEM alarm. The alarm tied in to the Mercury RKE so I don't need 2 different key fob. It works with the Merc. Fob. Worth a look anyway

"My Name is Richard. I am a Contouraholic."
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