Horn output

Hi!,

quick question, i wanted to wire my factory horn instead of the alarm siren with my alarm.  My alarm gives an negative output, do I need I relay if I wire it to my 92 Toyota corolla? If I do how would I wire it?

The GREEN/ red horn wire at the steering column goes on to trigger the factory relay---so you don't need to install your own.

Does your alarm put out a pulsed output, or a steady one?  One long, steady, horn blast would sound stupid, and possibly make the horn unhappy too.  If it pulses on and off every second or two, you're all set.