Protect your cherished G-Class without compromising everyday usability.
The G-Class W463 is not only a vehicle with high value, but also one where you should consider theft prevention due to its presence and popularity. With the convenience of the original keys preserved, it’s reassuring to choose measures tailored to how you use the vehicle—such as steps that make it harder for the car to be moved without authorization, and provisions that make it easier to notice abnormalities while parked.
If you’re unsure, start by considering these two options.
The Basic Defense Plan is a simple setup focused on protection against unauthorized engine starts. It’s ideal for those who want to secure the fundamentals first, or for those who want to be prepared without significantly changing their usual operation feel. It’s also an easy plan to choose if you’re thinking of using a type that does not emit sound as the base.
The Siren Peace-of-Mind Plan builds on the unauthorized start prevention by making it easier to alert people nearby with a siren in the event of an abnormality. If you frequently park outdoors or for long periods, this is the option to consider—especially if you’re thinking of including a type that emits sound.
If you’d like to avoid loud alarm noises but still want to notice abnormalities more easily, you can also consider a method that adds notification functions while keeping a non-sound type as the base. Since the best choice varies depending on your parking environment and how you use the vehicle, it’s helpful to organize your options according to your storage conditions if you’re torn.
The amount you select on the plan page can be considered an estimate of the total cost, and the schedule you select can be treated as proposed installation dates. If you have time before the installation date, you can proceed with the nearest content first and then consult with us about any additions or changes up to around one week before the scheduled installation date. Also, the products you install may include details that allow you to consult about removal and reinstallation when you switch vehicles in the future—so you can feel free to ask even at the decision-making stage. For theft away from home, we recommend sound-based security first; TELE COMPASS is the next step to consider.
Theft becomes harder the more time and effort it takes. We believe that stacking up those seconds is what protection really is. And what decides that time is not so much what you choose, but how it is installed.
When a new model comes out, we first bring that car in as our own demo car - not to display it, but to find out. We analyse the actual vehicle, test it on the car after fitting, and check that it still behaves reliably once time has passed. Then we drive it ourselves every day to make sure daily usability is not spoiled. Only once we are satisfied do we recommend it for a customer’s car. In 26 years we have never changed that order.
Manufacturers have recognised this approach too. We received the AUTHOR ALARM Annual Sales Award three years running, in fiscal 2024, 2025 and 2026, and in fiscal 2026 we ranked No.1 nationwide. We see the fact that so many customers choose us as the result of the care we put into every single installation.
We treat a product not as a finished article but as material. It becomes one car’s security only after it has been built up for that car. So even on the same model, the result is never identical.
We have not received a report of a vehicle being stolen after we fitted it. There is no “absolute” in theft prevention. That is exactly why we keep putting the work into every single car.
We aim to complete the work in a single day as our basic approach. If the content is more complex, work may continue into the next day. If you would also like non-security work carried out at the same time, we will suggest the number of days needed based on the content, so please feel free to contact us.
We have a certified Class 2 automobile mechanic on staff. Our premises are protected by 23 security cameras across two independent systems, and because the shop doubles as our home, someone is on site almost around the clock. Being ready to respond immediately is simply part of our everyday routine.
We also keep 9 loaner cars on hand, so you can choose the one that best fits your needs on the day.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.
*This plan does not include TOR. If they are installed at the same time, please select from the products that are installed together.
If you would like to install speakers, woofers, amplifiers, drive recorders, etc., please select from here.