Car Alarms: horn and relay question, honda civic ex, output pin

Question
when i read your relay diagram on wiring the vehicles oem horn with the siren, it says that if vehicle has a psitive type of horn output, pin 87 will also go to 12 volts. how do i know if my car has a positive type of horn? its a 1993 honda civic ex.  

Answer
Yours is a negative triggered horn.
Locate and send a griund to the horn wire
in the ignition column. When you tap it to ground,
the horn will honk. Use your siren output
and go direct to the wire without relays.

Should be just fine.

Good luck.

ALARMTEK