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How to connect battery back up siren??

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=14825
Printed Date: July 18, 2025 at 9:58 PM


Topic: How to connect battery back up siren??

Posted By: skyline_man
Subject: How to connect battery back up siren??
Date Posted: June 12, 2003 at 12:24 PM

Where and how do you connect a battery back up siren to your alarm? the alarm is a hornet 554t. Also, i want to connect an internal screamer, how do i go about in doing that?

thanks




Replies:

Posted By: ThaScarecrow
Date Posted: June 12, 2003 at 4:30 PM
I install one with a DEI alarm a few days ago (was my first alarm install). On the siren/backup battery there were 4 wires: ground, constant 12v, positive trigger, negative triger.

I didn't need to use the negative trigger with this alarm (you should need one or the other). ground and constant are obvious, positive trigger I hooked up to the positive siren output. This makes the backup siren work with the primary siren as well as on it's own when your battery gets disconnected. On the one I did I hooked it all up, turned the key on the back of it to the right and that was it. If you disconnect the battery you have to turn the key the other way to stop it from making your ears bleed. Hope this helps.


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