Car Horn vs 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=21888
Printed Date: May 13, 2024 at 1:04 AM

Topic: Car Horn vs Siren

Posted By: meh66
Subject: Car Horn vs Siren
Date Posted: November 24, 2003 at 2:12 PM

Hi,

I was wondering if you could wire a Viper 550HF alarm to the horn instead of the provided siren?

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MEH66
"Car Performance and Mobile Electronic Enthusiats"

Replies:

Posted By: draasch
Date Posted: November 24, 2003 at 3:20 PM

it depends on the output.... you may need a relay..

can you program the output of the siren wire to be pulsed?? i wont wire it to be steady. most alarms will give you that option.

what is the yr, make, and model of car. i will send the wire color to you.

also tell us what the output from the alarm is.

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Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Posted By: meh66
Date Posted: November 24, 2003 at 3:47 PM

Thanks for the quick reply.

The alarm is a viper 550HF. I was going to use the siren output (+). The vehicle is a 1996 Chevy Astro Van. You can program the output of the siren to be pulsed.

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MEH66
"Car Performance and Mobile Electronic Enthusiats"

Posted By: draasch
Date Posted: November 24, 2003 at 4:54 PM

yes you can do it....here is the info:
OEM Horn BLACK (-) STEERING COLUMN HARNESS

you will need a relay....

alarm wire to 86
30 and 85 go to ground
87 goes to the horn wire from above....

i would add a fuse to the 12v side of relay..(the alarm output)

-------------
Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Posted By: auex
Date Posted: November 24, 2003 at 5:29 PM

To chop the horn output( I don't think that it was a programmable option on that old of an alarm) you will need 2 relays. Relay 1: 85 +siren output, 86 ground, 30 ground, 87 output to relay 2, pin 30. Relay 2: 85 +parking light flash output, 86 ground, 30 input from relay 1(pin 87 on relay 1), 87 - output to horn. Just another option.

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Certified Security Specialist
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