horn output to siren?

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=51139
Printed Date: May 11, 2025 at 3:12 PM

Topic: horn output to siren?

Posted By: caryb
Subject: horn output to siren?
Date Posted: March 02, 2005 at 10:31 AM

How would I go about getting the factory chrysler alarm on my Jeep which uses the two horns, to use a pulsed alarm siren, but not lose the factory horns for emergencies? Both the factory horns have green and black wires.

Replies:

Posted By: blackshuck
Date Posted: March 02, 2005 at 1:32 PM

you can either find the factory alarm module, find the wires going to the horn, disconnect them from the horn, and run them to a siren, or you can cut the wires at the horns, run it to a siren, and then run your own wiring to your steering wheel pad to sound your actual horns.

Posted By: bretbowman
Date Posted: March 02, 2005 at 6:09 PM

Not easy... hmmm posted_image

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2002 Toyota Sequoia Limited 2WD (Clifford G5 Avantguard 5 w/ 2 SmartWindows modules) - IT Engineer - NRA Life Member - LDS Return Missionary - Married for time AND ETERNITY - Eternally sealed family

Posted By: secureauto
Date Posted: March 03, 2005 at 12:45 AM

What type of siren are you using and on which Jeep model/year?

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ASE Certified

Posted By: caryb
Date Posted: March 05, 2005 at 10:34 AM

2002 Jeep Liberty -- DEI 514T Siren.

So if I get the RED / black (-) horn trigger wire from my Liberty to 86, attach 85 and 87 to fused 12V+, and attach 30 to the positive siren wire, will it work?

If I were to use the flashing parking light wire, would the alarm sound whenever the lights flash, (i.e. hazard lights, turn signal), or are these seperate circuits/wires.

And I want the factory horn to work as normal. Does anyone know if the negative horn trigger wire under the dash is for both the factory alarm and horn? If I cut it to attach it to the relay will I lose my normal horn?