I only wish!/\/\/\/\

Amplifier? wtf? I've never seen a car horn with an amplifier on it. Horns are simple beasts - power on one side, ground on the other and HONK!! Basic piezoelectric transducer on a diaphragm.

Hook the **** up with a relay off the alarmed out or the starter disable output and yer done. In fact, after you have the relay in you can hook whatever the hell you want to it. Go nuts. We had 5 sirens including a mechanical on the outside of the car too. It was mental [img]graemlins/thumb.gif[/img]

In fact, if hooking up the regular horn to the alarm I suggest avoiding the flasher relay and going straight out. Honk honk honk is gay - Hoooooooooooooooooooooooooooooooooooooonk is much more convincing [img]tongue.gif[/img]

take one apart dukk... youll see its a compression horn with an amped circuit...

just put an extra battery under your seat and hook up two terminals to the back rest of your seat. have a switch hooked up to that. when you get out of the car turn on the switch. then, if anyone sits in your seat, he connects the terminals and ZAPPO!!!

well, there are a few flaws in design, but you get the general idea. he he he.

I agree with Dukk, use a relay to power the second,third, fourth ..,horn, siren whatever.
Amplifier..,? duh !
It's so simple why are you guys making so complex??