How do i wire relay?

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=73818
Printed Date: July 23, 2025 at 4:32 PM

Topic: How do i wire relay?

Posted By: mrcllusb
Subject: How do i wire relay?
Date Posted: March 02, 2006 at 9:56 PM

I've got a 514C and a dei piezo siren,and want to run them off of a relay.My alarm has a (-) siren output.How do i wire these sirens off of a relay?

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"ole blake"

Replies:

Posted By: trixxter
Date Posted: March 02, 2006 at 10:22 PM

- siren output to 85, + to 86,87, 30 to siren +

Posted By: mrcllusb
Date Posted: March 02, 2006 at 11:34 PM

So there is no ground for the relay?

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"ole blake"

Posted By: mrcllusb
Date Posted: March 03, 2006 at 4:04 AM

anyone?

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"ole blake"

Posted By: mad550
Date Posted: March 03, 2006 at 4:12 AM

The alarm IS the ground signal

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WOW Sight and Sound
Maroochydore
Nothing is impossible!
Do it right the first time or don't do it at all.

Posted By: mrcllusb
Date Posted: March 03, 2006 at 6:09 AM

Okay got it.
86 and 87=12v
85=(-)siren output
30=Siren(+)

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"ole blake"

Posted By: coppellstereo
Date Posted: March 03, 2006 at 9:41 AM

what is triggering the relay?

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Posted By: audiophd
Date Posted: March 03, 2006 at 10:00 AM

pin 85 which throws ground when the siren is engaged. learning how a relay works is probably the #1 thing you wanna learn when gettin into Auto Security

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