DIY: Replacing the dead goose honk Audi alarm with a 118db horn! $21.99 completed.

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Picked up a set of these from Autozone lastnight on my way home from work:

http://www.autozone.com/selectedZip,.../selectZip.htm

I had originally planned to use them behind my front RS4 grille and to ditch my OEM horns. After quickly finding out that the horns would never fit behind the grille because they were too deep I decided to use them for the car alarm.

First thing is to locate the OEM Audi teeney tiny carm alarm. Its behind the interior carpet panel drivers side directly next to the OEM amp and CD changer.

You can see it here with the two wires un-plugged from it:



I didnt actually remove the trim panel so I couldnt get in there enough to remove the actual OEM alarm, I just pulled the female connectors off.

Next I went and picked up a piece of 10"x1" zinc coated angle iron for $1.99 at the hardware store and mounted one of the horns to it.



With it mounted I set out to find a place to mount it. On the drivers side dumper mount there are 4 allen head bolts attaching the bumper support to the frame. The lower inside bolt I took out right above the muffler. Seen here, bottom left:



Next I just had to find a way to run the wire from the stock alarm to the new position behind the rear bumper. I wasnt found of drilling any holes so I went looking for the spare tire drain plug.



I cut a slit in that plastic plug to run the wires through after I crimped on male/ female connectors. Then I simply ran the wires and plugged everything in.

MAKE SURE YOU DO NOT GROUND THE HORN TO THE CHASSIS, THE AUDIS HORN IS A NEGATIVE SWITCH SYSTEM!

Then I just bolted her up in place to the bumper support bolt and she worked!



Here you go, This tool put the same exact horns on a bike, IDK why.

http://www.youtube.com/watch?v=sEOOyaQhWZI

The Audi battery puts out more amps and im pretty sure it would make it louder than this. Its harder to tell from the vid how much louder but you get the idea of the tone and volume.

[ExpLlclT]

lol that lame donk noise i guess is gone how loud is that thing

[biketsai]

Ive done it with a Viper alarm, just tied the red and black wires to the existing harness

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Ive done it with a Viper alarm, just tied the red and black wires to the existing harness

Yes sir, I found your post and it helped me find the OEM alarm.

Its loud as shit, I couldnt believe how much of a diff. it made. I parked my car outside of my office window at work and hit the panic button and I could clearly hear it. Which will come in handy seeing as a few people at work have had their cars broken into.

I actually only hooked up one of the horns so if anyone wants the other Ill let it got for $10 shipped with a mounting bracket.

[JaVa]

this was the first mod i did to my car. there is a clip of mine on youtube somewhere.....

[generik777]

Post a video on youtube to show the sound, I've been thinking of doing this for awhile.

[CycloSteve]

Considering the dime you found in the trunk it is actually a $21.89 upgrade! Great idea and write-up, as I hate the dead goose sounding horn.

[the_pirate]

awesome! i may do this tomorrow after i change my fuel filter.

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Anyone want the other horn that came in the kit? You cant use both horns at once or you get a even worse goose honk because of the two horns draw on the system.

It was actually pretty funny, it sounded EXACTLY like a goose.

No sound clip yet, Ill have one tonight though.

Side note: I was eating at subway today and something set my alarm off and I heard it from about 150 yards away inside the store.

[JaVa]

here is mine, sounds funny cuz i used i siren instead of a horn..... first id the lock beep then panic.
http://www.youtube.com/watch?v=PBGuplS2Ay8

[tdn]

right now. this is what i want but can't find..
http://www.youtube.com/watch?v=RyyPX...eature=related

but i'll try this first. http://www.youtube.com/watch?v=JjRq6-75vmI

[4A Play]

I actually also have a Euro police siren I may try. Im happy with it this way but may play around with it a little.

[4A Play]

Here you go, This tool put the same exact horns on a bike, IDK why.

http://www.youtube.com/watch?v=sEOOyaQhWZI

The Audi battery puts out more amps and im pretty sure it would make it louder than this. Its harder to tell from the vid how much louder but you get the idea of the tone and volume.