wiring additional sirern

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kandyman67

Member - Posts: 5

Joined: January 14, 2009

Location: Minnesota, United States

Posted: January 14, 2009 at 5:52 PM / IP Logged

I was currious if its a bad idea to tap another siren into my original they are both the 6-tone sirens. Will the alarm support additional power for both? if not how do i hook up the relay to the sirens(prolly stupid question but i dont really know)I am thinking of wiring the second siren underneath the back of my navigator, there is a grip of room back by the spare tire and it should be up high enough... what do you think?

Thanks!!

loneranger

Copper - Posts: 572

Joined: December 28, 2008

Posted: January 14, 2009 at 6:05 PM / IP Logged

A relay is recommended. Your alarm's siren output may not be able to produce enough current for both sirens. Also, mounting a siren underneath the vehicle will expose it to all the harsh elements of the road. Mounting it above the tire would keep it more protected. Make sure that a serviceman or mechanic can remove the tire, without danaging the siren.

Here is the wiring for the relay.

#87 to a fused ~5 amp constant 12v+.
#30 to both siren positive wires, using a ~3 amp in-line fuse, for each siren.
#85 to ground.
#86 from alarm's siren wire, using a ~1amp in-line fuse.
#87a is not used and insulated.

Ideal - cmon dude, add to topics in a useful manner, not stuff that is obvious.

Story - Phzzzt! Hey, what happened?! ... Isn't it obvious?

Moral - Never dismiss the obvious.

CutDog504

Silver - Posts: 643

Joined: May 14, 2002

Location: Louisiana, United States

Posted: January 15, 2009 at 5:15 AM / IP Logged

I've done numerous installs with 2 sirens on the alarms output wire with no problem. But thats the definite most I'd go with, 3 would definitely need a relay. I've even done alarms with 5 and 6 sirens, AND the factory horn honking. An alarm that loud will wake the dead. Even arming and disarming it will wiz off all your neighbors. Another tip: if mounting under the vehicle, try to hide it in or above the frame rail. This does two things, it shields it from water or mud splashing up into the siren, and it also somewhat hides it from a thief's view.

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wiring additional sirern

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