How To Make a Car Alarm Sound More Louder

If you are wanting or thinking about how you can make a car alarm sound more louder than it currently is, then all you need do to is replace the siren with a louder siren, that is capable of producing a louder db. If you want to make your car alarm sound really loud, using a relay you can hook up more sirens, rather than using a single siren, which will make a dramatic impact on how loud your car alarm will sound, when it sets off.