How do I install a 2nd siren?

Hi bud

The battery is a little bit bigger than a video cassette and the brand is "Odyssey"  I came across it at a local starter and alternator shop.

Hi NyxBass - I purchased the piezo's from a shop in Canada called The Speed Of Sound.  If you go to any stereo shop that does alarms, they should be able to get you some.  There are a few different brands of piezos on the market.  Make sure you get the ones made by DEI.  You will notice that if you install 1 piezo inside your truck that it is barable.  I had one in mine then I decided to add 2 more.  Now you feel it big time in your ear.  They have a wierd tone that makes you cringe like when someone scratches a chalk board.  You can check online here http://www.autopreservers.com/security/acc/513t.htm they sell them.  Any more questions about them jusk ask

Have you thought about getting an air horn for your alarm instead of using your factory horn?  They are louder than any siren.

hot_shot_guy123

Well since your using more than one piezo, you might get away without using a relay.  I didn't use a relay at first when I had 1 external siren and 1 piezo.  When I got my other piezo's and my other external siren, that's when I wired up a relay.  I tried to keep away from using a relay at first cause I was afraid to hook up one wrong, but after asking questions on here, I put one in.  Easier to do then I first thought and it gives you piece of mind knowing that you won't blow your siren output due to excessive current draw.  Just to be on the safe side, I'd put one in.  If you want I can try to send you a diagram of how my sirens are hooked up.  Just leave your e-mail

hot_shot_guy123