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Alarm siren to horn

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Old 07-29-2010, 05:28 PM
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Default Alarm siren to horn

Today my alarm siren went. I plugged a door speaker to it
And it worked, I wanted to wire the alarm to the facotory horn.

I was wondering if I could just extend the alarm siren wires and wire it to the factory horn with no problems.

Tia
Old 07-29-2010, 05:37 PM
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Default Re: Alarm siren to horn

good idea.
Old 07-29-2010, 05:41 PM
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Default Re: Alarm siren to horn

it wont work...you have to add a relay because the output on the alarm is not strong enough to sound the horn...
Old 07-29-2010, 06:55 PM
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Default Re: Alarm siren to horn

Originally Posted by kevinm1981
good idea.
Thanks
Originally Posted by rickyracer
it wont work...you have to add a relay because the output on the alarm is not strong enough to sound the horn...
So just a relay and it will work? So my horn will work by pressing the horn Buttons and still work for my alarm. It won't fry my alarm brain or nothen...
Old 07-29-2010, 07:15 PM
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Default Re: Alarm siren to horn

no it wont burn anything...if you add a flasher also it will make the horn turn on and off...if you use the relay only the horn will stay on the whole time until the alarm turns off...
Old 08-05-2010, 07:03 PM
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Default Re: Alarm siren to horn

How about you start with MM&Y of the car, many if not most car horns are already relay driven.
Also a make and model of alarm will help, some alarms have a horn option, no flasher needed. 94
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