adding extra siren to audi alarm

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=75208
Printed Date: July 18, 2025 at 7:34 PM

Topic: adding extra siren to audi alarm

Posted By: roband69
Subject: adding extra siren to audi alarm
Date Posted: March 27, 2006 at 7:40 PM

does anyone know of a way to add an extra siren to a 1999 audi a6 factory fitted alarm,i have tried the conections on the 3 pin plug that goes into the siren but there only seems to be a constant +12v.Any help gratefully recieved ps wiring diagram would be helpfull thanks

Replies:

Posted By: xtac1080
Date Posted: March 29, 2006 at 1:35 AM

ill hook you up with a wiring diagram from mitchell on demand tommorrow for that cars horn system. Did you test all the wires while the horn was being activated?

Posted By: roband69
Date Posted: March 29, 2006 at 6:19 AM

I tried all the different combinations when activated but i am no expert.the diagram would help loads.
THANKS

Posted By: roband69
Date Posted: March 31, 2006 at 5:05 AM

If you can not get the diadgram how about the colour/location of the positive feed to the hazard light relay from the alarm.
I may be able to use this feed as the hazards continue to flash after the siren stops.

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