I am installing an Alpine 150r into my '95 civic hatchback. I also have air horns and would like to link them with the alarm. The alarm has an alarming output wire, can I wire this into the relay of the air horns or do I need another relay? if so which post on the relay should I splice it in with?TIA

 

if the relay that is supplied with the air horns is pre wires for a negative trigger, yes you can . otherwise you can add a second relay or rewire the air horn relay to accept a negative trigger. goodluck!