Car Horn vs Siren

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meh66

Copper - Posts: 266

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Joined: October 26, 2003

Location: United States

Posted: November 24, 2003 at 2:12 PM / IP Logged

Hi,

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

MEH66

"Car Performance and Mobile Electronic Enthusiats"

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draasch

Gold - Posts: 2,172

Joined: February 07, 2003

Location: Florida, United States

Posted: November 24, 2003 at 3:20 PM / IP Logged

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.

Good Luck

David

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meh66

Copper - Posts: 266

Joined: October 26, 2003

Location: United States

Posted: November 24, 2003 at 3:47 PM / IP Logged

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.

MEH66

"Car Performance and Mobile Electronic Enthusiats"

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draasch

Gold - Posts: 2,172

Joined: February 07, 2003

Location: Florida, United States

Posted: November 24, 2003 at 4:54 PM / IP Logged

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

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auex

Platinum - Posts: 5,041

Joined: December 23, 2002

Location: Arizona, United States

Posted: November 24, 2003 at 5:29 PM / IP Logged

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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Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Car Horn vs Siren

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