
We propose a plan tailored to your vehicle type!
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For those who wish to design their own security configuration, we offer a fully custom security plan.
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Limited to Toyota and Lexus vehicles! Same-day reservations and installation available!!
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Reservations are required for free loaner cars.
Learn more!We propose the best car security system to match your vehicle, parking environment, and usage.

In AUTHOR Alarm's fiscal year 2026 national sales rankings,
we are proud to have been named the No. 1 dealer nationwide.
We sincerely thank all of our valued customers for their continued support.



We are honored to have received the No. 1 nationwide sales award for AUTHOR Alarm's fiscal year 2026 results at "AUTHOR MEETING 2026."
Our journey into car security began about 32 years ago, when we heard a car siren while visiting the United States. Back then, we researched imported products with an English-Japanese dictionary in hand, building our skills and experience through trial and error on our own car.
It has been 26 years since we opened. Today, through both car audio and car security, we support our customers' car life from two sides: the joy of driving and the peace of mind of protection.
To keep providing smooth, high-quality service even with a small team, we are also developing and automating our own system that connects everything from website inquiries, quotes, and orders to payment, delivery, and after-sales support.
This No. 1 nationwide result was made possible by the many customers who have trusted us with their treasured cars, by AUTHOR JAPAN, and by the staff who support us every day. We offer our heartfelt thanks.
We will continue to face each and every customer's car with sincerity, striving to improve our technology and service so you can enjoy your car life with peace of mind.


LOGON AUTO MALLThis is an online shop run by LOGON.
LOGON Event InformationWe provide information about car audio and car security events at our store here.There has been a theft of a Land Cruiser 300 at a home in Abiko City, Chiba Prefecture, as well as at a hotel parking lot in Noda City. Information has also been released by the manufacturer regarding damage to vehicles equipped with iGLA 2, so it’s a situation where you need to consider countermeasures both at home and when you’re out.
As of August 2026, we have not received any reports of theft damage for vehicles we have installed.
However, the method changes. We believe that this is not something you “install and it’s done”; you should review the necessary countermeasures while keeping an eye on the situation as it develops.
iGLA 2 / iGLA 2+ are still important countermeasures to prevent the vehicle from being moved unlawfully. At the same time, in places where it’s less likely to be noticed, it’s becoming increasingly important to layer measures that suppress the intrusion itself and measures that alert you to abnormalities with sound.
If we were to add to your current setup, I would prioritize the following first:
KEYLESS BLOCK JP+
Countermeasures to suppress entry into the cabin
AUTHOR ALARM / GOLGO PANTHER A / SIREN BT
Countermeasures to alert to abnormal activity with sound and create a situation where the intruder is less likely to stay on site
Depending on what else is needed, there is also an option to combine TELE COMPASS, which supports notifications and location confirmation. Operation may vary depending on the communication environment and vehicle condition, and you will need to subscribe separately.
You do not need to replace iGLA 2 / iGLA 2+. It’s fine to take the approach of keeping your current configuration and adding what’s missing. We’ll think together in a practical way while confirming your vehicle model and your current installed equipment.
As of August 2026, we have not received any reports of theft damage regarding vehicles we have installed.
The methods change every year. That’s why we, too, change every year.
To be honest, it’s the most heartbreaking for me if the customers we install on are victimized.
If someone is going to target a vehicle, please make it my car—not the customer’s. In that case, we will learn from it. That’s why we have demo cars.
At LOGON, we check auto theft news and public information that may be relevant within roughly a 100 km radius of our store, and reflect it in our vehicle-specific security plan recommendations.
If you drive a Land Cruiser, Alphard, Lexus, HiAce, Crown, etc., please also review the theft trends for each model and any public notices from official organizations. This information is not meant to create anxiety, but to help you calmly consider countermeasures that fit your home’s parking environment and your usual way of using the vehicle.
General Incorporated Association for Automobile Theft Prevention (Official Site)
A specialized organization that provides information and handles consultations with the aim of achieving zero automobile theft nationwide. Their official YouTube channel, “Automobile Theft Prevention Association: Professional in Car Cyber Security” (https://www.youtube.com/channel/UCp4BCyWaiydj95rArvD7TZA), also shares the latest details on theft methods and countermeasures.
Broadcast on September 9, 2026: Thieves may have used a “hoop” to steal a car… First arrest in a relay attack
It is reported that a suspect was arrested for the first time nationwide for automobile theft via a relay attack that abuses the radio signal of a smart key. In addition to Saitama Prefecture, similar cases are also under investigation in Ibaraki and Chiba, making this a tactic you should keep in mind even near our store.
Posted on September 3, 2026: Theft of a Land Cruiser 250 reported in Koshigaya City, Saitama Prefecture
From the night of September 1 to the morning of September 2, the theft of a Land Cruiser 250 was reported in Koshigaya City. The report states that even vehicles using a steering wheel lock and connected services were affected, illustrating the importance of not relying on purely physical countermeasures and instead considering a combination of multiple measures.
Updated August 12, 2026: Chiba Prefectural Police—Analysis of Automobile Theft Incidents (Provisional figures as of end of June, Reiwa 8)
Chiba Prefectural Police has published trends regarding vehicle models that are more likely to be victimized in the prefecture and the locations where incidents tend to occur. For residents of nearby areas such as Kashiwa, Matsudo, and Nagareyama, this is also a useful reference when reviewing countermeasures according to your storage environment and how you use your vehicle.
The methods used in auto theft are changing, and in some cases, worry remains even with factory security and locking alone. At LOGON, we propose combining countermeasures—protection against unauthorized starts, siren alarms, smartphone notifications, keyless-related measures, and analog blocking—based on how you use your vehicle and your storage environment.
First, please check the plan specific to your vehicle model. We can also support consultations before delivery and provisional reservations, so feel free to contact us even if you have not yet decided on the details.



