From horn button to Toggle switch  Toggle switch routing power to either factory horns or relay trigger side.  From relay power side to angry horn. Of course you do have a fused power cable going to relay as well.   Flip switch to angry mode and display a toothy grin when mashing horn pad. 

I plan on getting a cattle horn and run an independent ciruit. I would use to motivate dimwits, entertain bystanders, and to commune with nature. 

Chris.

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Dnia Apr 20, 2011 o godz. 20:07 neil n <musomuso@GMAIL.COM> napisał(a):

> I shouldn't have posted that diagram so soon. Seems it could be done
> with just one relay.
> 
> Neil.
> 
> 
> 
> On Wed, Apr 20, 2011 at 1:12 PM, neil n <musomuso@gmail.com> wrote:
>> Hi all.
>> 
>> Plan: install switch to allow use of stock or added (2) louder horns
>> via 2 relays.
>> 
>> Stock horn switch (ground) --> SPDT *switch to control negative to 85
>> of either new relay.
>> 
>> Don't know if using an 87/87a relay would reduce amount of wiring but
>> here's a quick diagram using 4 pin relays:  http://tinyurl.com/3k2lwx4
>> 
>> *switch would be labelled "Angry" and "Happy" just to confuse the next guy.   ;)
>> 
>> Is there any reason why I shouldn't take power from B+ to supply power
>> to new horns? i.e. I could sound the horn, key not in ignition.
>> 
>> Neil.
>> 
>> 
>> 
>> --
>> Neil Nicholson '81 VanaJetta 2.0 "Jaco"
>> 
>> http://tubaneil.googlepages.com/
>> 
>> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>> 
> 
> 
> 
> -- 
> Neil Nicholson '81 VanaJetta 2.0 "Jaco"
> 
> http://tubaneil.googlepages.com/
> 
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines