I've installed Hella air horns in my van - it is a fairly easy installation.
What I did was use the existing horn wire to a relay for the switch, and ran a
new wire from the battery to the relay for power. I added an in-line fuse to the
power wire just to be safe.

Email me offlist if you need more specific details.

Todd
'8 Westy

Bill Kasper wrote:2. i am going to install hella air horns, and don't have
enough confidence

> in my electrical knowledge to feel comfortable just diving straight in.
> shocking, i know.  can i use the original horn wires to switch the relay if
> i put the relay down by the horn?  or can i use the original horn wires as
> positive/ground if i put the relay and new fuse up by the other
> fuses/relays?  anyone else put these in who can advise me?
>
> thanks, all.
> bill
> '87 syncro westfalia
> http://www.scruznet.com/~kasper/pics/westy/