Does anyone know how to add a siren or airhorns to the factory alarm? I know on VQpower.com, there is a post to add shock sensor to the car and a buzzer for when you arm the alarm but I would like to add airhorns to the factory alarm without adding the airhorns the horn of the car. Let me know.

Mike

 

I do not know much about alarms but it seems like factory one is only to open and close door locks and for panic, so it doesn't sound if someones hits car or open doors. I think you must buy an alarm, then you can add the air horns to the siren; that's what I did. $300 Prestige informer installed with air horns. It has remote starter if you got automatic, that was the cheapeast and decent alarm I found.

 

honestly i dont see any room to really modify the alarm. I don't think too many ppl with 4th gens have installed aftermarket alarms but i could be wrong. If you do get an alarm you must get the LCD pager type. I think getting anything else would be pointless.