I have A 97 XLT. I PURCHASED IT USED. IT CAME WITH THE FACTORY SECURITY SYSTEM, ( THE ONE WITH THE HORN) BUT ALSO HAS AN AFTERMARKET KILL SWITCH. UPON FURTHER INSPECTION i NOTICED AN ALARM HORN AND ALSO A RED LED ON THE DASH. i FIGURED IT WAS PART OF THE AFTERMARKET SECURITY SYSTEM, THAT i NEVER RECEIVED A REMOTE FOR. SO I LOOKED UNDER THE DASH FOR THE CONTROL UNIT SO I COULD PURCHASE A REMOTE FOR IT. ALL I COULD FIND WAS THE FORD FACTORY SECURITY UNIT. DOES MY X HAVE A FACTORY SECURITY SYSTEM OTHER THEN JUST THE HORN?
ALL I CAN DO WITH MY REMOTE I HAVE NOW IS LOCK AND UNLOCK THE DOORS, WITH A PANIC. I WANT TO HAVE MORE SECURITY THEN JUST THE HORN. IF I DO HAVE THE EXTRA FACTORY SECURITY SYSTEM HOW WILL I KNOW, AND HOW WILL I GET A REMOTE SO I CAN TURN IT ON? THANKS FOR TAKING THE TIME TO READ ALL THIS NONSENSE!

If you want to use the aftermarket alarm. you'll have to find out the model number of the alarm unit (hopefully it's not a cheap, generic unit) and contact the manufacture to buy a remote directly from them.

But there's a possibility that the kill switch and horn are just wired up to the factory alarm :confused: