Well I bought an air horn kit and I wanted to instal it in my car. What I want to do is connect it to the alarm. So when the alarm goes off the air horns should go off too. As well as that I want to use them in place of the stock horn. I can get it to be used as the stock horn I just want to know where I need to connect it to get it to go off with my alarm. But where it would confuse me is how would I connect it to do both

Here's the manual to this air horn kit

http://www.harborfreight.com/m...4.pdf

Hope it helps

Thanks in advance

Get a relay, and have it triggered by the siren output wire.

Which wire would that be? I checked the siren and I see a black and red wire going to it. There's also two black wires that are looped to the siren(come out and come right back in). Is it one of those? I didn't install the alarm so I have no Idea what wire is what.

The red wire is the siren output wire.

thanks a bunch