siren wiring?

I bought a new (in box) no-label siren on CraigsList. The guy didn't know anything about them. The siren has separate red & black wires and a 3-pin plug (with yellow, blue, green wires). Red & black are power & ground. If I ground the blue the siren sounds good and loud. Any guesses what the yellow & green wires are for? If I ground them nothing happens. I'm reluctant to put 12v to them without some additional information... This may have been once sold as a cheap self-contained "alarm system". Thanks

If I were to take a guess I would say maybe a soft chirp option?Kenny

Owner / Technician

KKD Garage LLC

Albany, NY 12205

What's "soft chirp"?

Does this siren have a built in back-up battery in it. I know some of the DEI Sirens contain a battery. Usually you have a positive siren trigger and a negative siren trigger for more flexibility with your install. Check this out maybe it will get the wheels turning: DEI 515R Siren with Back-Up Battery Do you have a positive siren output from the alarm you are putting in or what are you planning on doing with the siren?I drink current, eat ohms, and bleed voltage

The siren has no battery in it. I am going to use it as a backup siren (inside the passenger compartment). The alarm has speaker output (the main "siren" is a speaker). I'll trigger this backup siren via one of the alarm outputs (ie, grounded when triggered). It would be nice to know if there are any options to the siren. Thanks,

What Alarm are you using?I drink current, eat ohms, and bleed voltage

Clifford Intelliguard 770. Not a 2-way system.

Is the signal out of the Clifford brain a AC Voltage signal like a audio signal when triggered or is it positive/negative DC voltage trigger like most alarms. The label "speaker output 1 & 2 " in the install manual is throwing me off.I drink current, eat ohms, and bleed voltage

Ref:Clifford 770. If two brown wires it's a speaker, if 1 brown it's a siren.

Definitely a speaker, not a classic (self-generated wailing) siren. The AC audio signal drives the horn-speaker. (Yeah, I'm used to dc-triggered sirens, myself...)