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wiring sirens to 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=118657
Printed Date: May 15, 2025 at 9:02 AM


Topic: wiring sirens to relay

Posted By: colin12
Subject: wiring sirens to relay
Date Posted: December 19, 2009 at 5:21 AM

Hey,

I currently have a car alarm that has a 12v out put for the siren i want to hook up 3 sirens(which i already have) i was told the best way was to connect everything to a relay because it will provide more constant power. If this is correct could someone plaese tell me what pins to connect on the relay i have read the guide on relays and still have no idea how to do it.




Replies:

Posted By: tedmond
Date Posted: December 19, 2009 at 6:17 AM

85 - ground
86 - 12v siren input from alarm/rs
87 - constant 12v fused @ 10 amps
30 - to positive sirens




Posted By: i am an idiot
Date Posted: December 19, 2009 at 6:58 AM

If you need a picture, The wire labeled Remote Turn On Lead is the positive siren output of your alarm.  Your new sirens are labeled fans in the picture.

posted_image




Posted By: colin12
Date Posted: December 19, 2009 at 3:17 PM
Awesome exactly what i was looking for thank you very much got everything hooked up and its working great


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