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Integrate with factory 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=9081
Printed Date: June 09, 2024 at 8:30 PM


Topic: Integrate with factory alarm?

Posted By: Tommyboy
Subject: Integrate with factory alarm?
Date Posted: February 04, 2003 at 10:22 PM

Does anyone out there know if I can connect the horn output wire from my keyless entry ( - ) to a wire on the factory alarm siren?  I have a 96 Jetta GLS and I'd like to use the factory siren/horn for confirmation chirps.

Thanks,

SST 



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SST



Replies:

Posted By: AlarmTech
Date Posted: February 07, 2003 at 1:38 AM

connect the keyless (-) horn output to a relay, then connect to the Jetta's horn trigger wire (BLACK / YELLOW, behind fuse box) the Jetta horn trigger is positive so wire the relay like this:

85 = (-) horn output from keyless

86 + 87 = 12v (+) fused

87a = not used

30 = out to BLACK / YELLOW Jetta horn wire.

now IIRC, with the older VWs, the key had to be ON in order for the horn to work (pretty stupid idea if you ask me) so you "may" need to go direct to the actual horn wire and not just the trigger wire.



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Viper Equipped


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