[s-cars] Stebel Air Horn

[Steve Powers]

you'll want a relay with normally open (N.O.) and normall closed
(N.C.) contacts, e.g. an SPDT relay like these:

http://www.rallylights.com/hella/Relay_Mini_SPDT_12v.asp

go to this page: http://www.rallylights.com/hella/Relays.asp, and look
at the SPDT diagram.

here's how to wire the relay to enable normal horn operation and to
enable stebel operation when high beams are lit.

wire horn signal to terminal 30
stock horn positive to terminal 87a (terminal connects to 30 when relay is off)
wire stebel horn postive to terminal 87 (terminal connects to 30 when
relay is on)
wire terminal 85 to chassis ground
wire stebel horn negative to chassis ground
wire terminal 86 to some signal, e.g. high beams, that goes to 12V
when active. you can substititute almost any function - low beams,
wipers, brake lights, etc. to trigger the relay to honk the stebel
horm (horn switch must be pressed also)

pat attention to this page when wiring your horns.
http://www.rallylights.com/useful_info/horn_wiring.htm


Steve




On Fri, 18 Mar 2005 11:10:38 -0600, James Murray (QA/EMC)
<james.murray at ericsson.com> wrote:
> hmmm... 1st steering press activates the Audi horn, 2nd press activates the Stebel... sort of like a tap on the shoulder, then a bat across the head... ;-)
> 
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com]
> Sent: Friday, March 18, 2005 12:10 PM
> To: s-car-list
> Subject: [s-cars] Stebel Air Horn
> 
> I am wondering if it would be possible to wire the Stebel so that you
> could select either the standard Audi horn or the Stebel.  Of course you
> would want either to be activated by the steering wheel horn button. If
> someone comes up with a relay and switch to do this, please post.
> Jerry
> 
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