install prestige aps785 in 99 expedition

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=23344
Printed Date: May 20, 2025 at 11:02 AM

Topic: install prestige aps785 in 99 expedition

Posted By: andrewzucker
Subject: install prestige aps785 in 99 expedition
Date Posted: December 25, 2003 at 6:46 PM

I'm going to try to install my first remote start / car alarm tomorrow and I have a few questions. I read through the instructions and everythig seemed straight forward until I came across the wiring of the aux output harness. this ahrness is used to control the factory alarm. the first wire is a pulsed ground output before start and is used to disarm the factory alarm. Up until reading this I assumed that I would need to uninstall the factory anti-theft system. Can someone please explain what I need to do with respect to the factory alarm. Thanks for the help.

-Andrew

Replies:

Posted By: Basscoholic23
Date Posted: December 25, 2003 at 7:35 PM

Does the factory alarm/Keyless entry have Trunk release on the factory remote?

Posted By: Basscoholic23
Date Posted: December 25, 2003 at 7:38 PM

If it does all your wiring are in the passengers kick panel ,exept for the immobilizer wiring.

Posted By: andrewzucker
Date Posted: December 25, 2003 at 7:39 PM

No it doesn't. It just has lock, unlock and panic.

I've been thinking about the alarm for a bit now and my understanding is simply that the alarm is controlled through the power locks. If the car is locked or unlocked with the ignition off the alarm will arm or disarm. Is this correct or am I way off.

-Andrew

Posted By: Basscoholic23
Date Posted: December 25, 2003 at 7:48 PM

Does your expo have a bliking light in the center of your top dash?if it does the door locks do control the factory alarm.

Posted By: Basscoholic23
Date Posted: December 25, 2003 at 7:53 PM

my bad for confusing you .Your explorer has keyless entry only.Your right about the door locks posted_image

Posted By: andrewzucker
Date Posted: December 25, 2003 at 8:15 PM

No worries. It's actually an Expedition but I'm assuming that makes no difference. No blinking light. Thanks for the help.