CAR ALARMS & HORN KITS: HOW TO BOOST YOUR VEHICLE'S SECURITY

Why Your Car Alarm Isn’t Enough

Car alarms are a common theft deterrent, but many factory systems are too quiet to be effective. Thieves often ignore them, knowing most people pay little attention to alarm sounds in parking lots or neighborhoods. If you want a serious anti-theft solution, upgrading your car alarm with a train horn or air horn is the best way to ensure your vehicle gets noticed.

How Car Alarms Work

A car alarm is designed to trigger when it detects unauthorized entry, movement, or impact. It typically activates:

When a door, trunk, or hood is opened without the key or remote.
If motion sensors detect movement inside the vehicle.
When glass breaks or the vehicle is tilted (for wheel theft prevention).
If someone tries to start the car without the correct key.

However, most factory alarms rely on stock horns, which are too weak to scare off thieves. This is where upgrading to a train horn comes in.

Common Weaknesses of Standard Car Alarms

Too Quiet – Factory horns don’t create enough noise to draw attention.
Easily Ignored – People hear car alarms all the time and assume it’s a false trigger.
Limited Range – If you’re far from your car, you might not hear the alarm.

How Much Are Car Alarm Systems?

Basic car alarm systems start at $50-$150, while advanced models with GPS tracking and smartphone integration can cost $300-$1,000+ depending on features and installation costs.

How Train Horns & Air Horns Improve Car Alarms

By connecting a train horn or air horn to your car alarm, your security system gets a massive volume boost. Instead of a weak beep, your alarm will blast at over 150 decibels, making it impossible to ignore.

Benefits of Using a Train Horn with Your Car Alarm:

✅ Louder than any factory alarm – Forces instant attention.
✅ Startles thieves – The extreme noise makes them abandon their attempt.
✅ Alerts everyone nearby – Unlike normal alarms, a train horn is impossible to ignore.
✅ Works as an instant deterrent – Many thieves will run the moment they hear it.

Best Horn Kits for Car Alarm Integration

Shocker XL Train Horn Kits

Compact yet extremely loud.
Great for smaller vehicles.
Works with most alarm systems.

Conductor’s Special Train Horn Kits

Complete kit with air system included.
Delivers a deep, powerful blast.
Ideal for larger vehicles or those needing maximum volume.

Van Horn Kits & Small Air Horns

Compact air horns that still provide a significant loudness upgrade.
Easier to install and ideal for daily drivers.

Onboard Air Systems for Car Alarms

Keeps your train horn ready to fire anytime the alarm is triggered.
Ensures consistent high volume.

How to Connect a Train Horn to a Car Alarm

Locate the Factory Horn Wiring – Your alarm likely triggers the stock horn.
Use a Relay to Connect Your Train Horn – A relay ensures the train horn activates when the alarm goes off.
Test the System – Make sure the alarm properly triggers the train horn.
Adjust Settings – Some alarms allow you to adjust sensitivity and volume output.

Answering Common Car Alarm Questions

Can a Car Alarm Drain the Battery?

Yes, if the alarm is constantly triggering or if the system has a parasitic drain issue. However, properly installed alarms should not drain a healthy car battery.

Can a Car Alarm Go Off if the Car is Unlocked?

Yes, if motion or impact sensors detect movement inside the vehicle, an alarm can still activate even if the doors are unlocked.

Can a Car Alarm Go Off if the Battery is Dead?

Most car alarms won’t function if the battery is dead, unless they have a backup battery system or are part of a security system that runs on an external power source.

Final Thoughts: Upgrade Your Car Alarm with a Train Horn

A loud car alarm is the best theft deterrent, and factory horns just don’t cut it. By integrating a train horn or air horn with your alarm system, you’ll have a serious security upgrade that no thief can ignore.

Looking for the best train horn kits to pair with your car alarm? Check out HornBlasters' selection and make sure your vehicle is protected. 🚨