adding the horn to an alarm

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kissmyss

Member - Posts: 7

Joined: March 08, 2008

Location: New York, United States

Posted: March 08, 2008 at 7:18 PM / IP Logged

I have the Viper 5900 and would like to have the horn sound when the alarm is activated. Can I just use a relay or do I need to install a diode? If yes to a diode, how do I wire it?

tedmond

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Joined: January 06, 2007

Location: Ontario, Canada

Posted: March 08, 2008 at 8:22 PM / IP Logged

you have the siren right? do you want to use the factory horn ? if so you might need a relay.

85 - horn wire (-) from unit

86 - constant 12v

87 - ground or 12v (depends on polarity of horn wire on car)

30 - to horn wire on car.

if you plan to ADD a siren you will use a relay as well

85 - ground

86 - siren wire (+) from alarm module

87 - high current 12v

30 - to both postive terminals of the siren(s)

kissmyss

Member - Posts: 7

Joined: March 08, 2008

Location: New York, United States

Posted: March 08, 2008 at 9:31 PM / IP Logged

The siren is already connected and I want to add the horn. So, I don't need to use a diode?

tedmond

Gold - Posts: 4,610

Joined: January 06, 2007

Location: Ontario, Canada

Posted: March 09, 2008 at 7:26 AM / IP Logged

nope no diodes. use the siren output to trigger an addidtion horn OR use the HORN (-) 250mA output from the viper to trigger factory horn.

dtk1

Copper - Posts: 179

Joined: June 21, 2007

Location: United States

Posted: March 09, 2008 at 11:40 AM / IP Logged

used the output from the viper alarm is a 2 pin plug one is ORANGE / black and the other one is brown use the brown wire and hook it up to your car horn .

kissmyss

Member - Posts: 7

Joined: March 08, 2008

Location: New York, United States

Posted: March 09, 2008 at 4:40 PM / IP Logged

Thanks

w87will

Copper - Posts: 52

Joined: February 18, 2008

Location: Florida, United States

Posted: March 09, 2008 at 9:06 PM / IP Logged

Sorry for thread jacking, but I have Air horns Im running instead of my stock horn to my 5900. Would I use the Brown wire with a relay to them or the ORANGE / black with a relay?

tedmond

Gold - Posts: 4,610

Joined: January 06, 2007

Location: Ontario, Canada

Posted: March 09, 2008 at 9:14 PM / IP Logged

use a relay.

w87will

Copper - Posts: 52

Joined: February 18, 2008

Location: Florida, United States

Posted: March 10, 2008 at 1:17 PM / IP Logged

I figured that. But brown wire or the ORANGE / black. Or does it not matter?

JWorm

Platinum - Posts: 2,208

Joined: December 11, 2002

Location: New Hampshire, United States

Posted: March 10, 2008 at 6:47 PM / IP Logged

Brown wire will give a constant output, ORANGE / black wire will give a pulsed output. If you connect it to a constant output, your neighbors will probably be over to strangle you whenever you have a false alarm.

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