Dynatron NZ is in Liquidation


Dynatron Product Range

I’ve just been informed that Dynatron NZ is in Liquidation. It’s not exactly breaking news as it happened on the 5th February! I’ve been a tad slack in posting about it.

Here’s the link to the Companies office…

The Dynatron NZ website is still up but the phone is not being answered.

Dynatron NZ is in Liquidation

So what does this mean if you have a Dynatron alarm?

Well if you have one of their (crap) Dynatron Digital alarms you’ll probably struggle to get spare parts or any support. I’ve never sold one personally as the product was too crap to be associated with! Dynatron Digital alarms were re-branding Kodinis Raktas alarms which they sold since 2013.

My suggestion is to either import your own parts directly or replace the alarm with a decent system.

Old Dynatron alarms are still supported

If you have a pre-2013 Dynatron alarm (see the logo at the start of the post) then relax. These were re-branded Dynamco alarms and are still available. I keep replacement remote controls for these.


Posted in Car Security News, Dynatron | Leave a comment

Viper 412V

The Viper 412V is the latest keyless entry system from Directed Electronics.

It replaces the Viper 211HV and comes with new remote controls and erm… Well, that’s about it!

It’s actually the same as the 211HV in all aspects apart from the new remote controls and a new box.

Inside the box, the user manual says 211HV which is a tad lazy but not really a problem.

Viper 412V

Viper 412V – With New Remote Controls

There are 3 buttons on the face of the remote. Lock and unlock don’t really need explaining, other than pressing both together activates the AUX 3 output.

Like the 211HV selective unlocking, double locking and unlocking are all supported.

The bottom button actives the panic alarm. The old remote on the 211HV did have a siren symbol, but I’m guessing this remote is borrowed from a remote start system as it uses the remote start logo?

The Aux button on the side of the remote activated the Aux 2 output. This is typically used for boot pop, but can be wired up for other functions.

Read the 211HV review for more details

Details here… It’ll save me repeating myself!

Viper 412V

Suggested Retail Price: $280 (may vary depending on vehicle and features)

Obsessive Rating:
A very versatile keyless entry system with a new number!

Read the 211HV review for more details as it’s exactly the same, just with different remote controls.



  • Two 4 Button remote controls
  • Blue LED
  • Hazard/Park-light output
  • Horn honk and panic options
  • Valet Mode
  • Courtesy Light output
  • Two Aux outputs


Additional information

PDF icon211HV User Manual


Posted in Keyless Entry, Viper | Tagged | Leave a comment

Viper 515R Battery Back-up Siren

The 515R is a battery back-up siren from Viper.

It’s one of those sirens that I’m not a big fan of as it has an over-ride key.

That said it does have a decent internal battery and the keys are individually numbered. Unlike the Mongoose and AVS battery back-up sirens, the lock is not super easy to pick!

I have stock of these which I’m willing to sell without installation. This way you can service your old alarm and make sure it still works.

A great replacement for your Mongoose M60 siren as it actually works!

Here is the mongoose siren in action to compare:


Please let me know which alarm you have and I can let you know if it is compatible and provide fitting instructions.

It will be good for most Mongoose and Dynatron alarms, along with many others.

Clearance price whilst stocks last: $45.00 each plus shipping.


Posted in Sirens, Viper | Tagged | Leave a comment

“Ever since you fitted the alarm…”

Ever since you fitted the alarm…

I’ve lost count of how many times an alarm has been the accused of being…

(fill in your own random complaint here)

…the reason things stop working on a vehicle.

Yet it nearly always turns out to be something else.

Here is the most recent one which I’ve had to deal with:

Alarm Problem

Hi Julian,

Just wanted to get in contact with you in regards to an alarm you installed in our vehicle.

Please see below previous correspondence we’ve had regarding this.

I’ve attached an invoice from an auto electrician who has identified the issue with the draining of the battery with the alarm.

I look forward to hearing your response on how to go forward from here to resolve the issue.

Thanks (Name edited)

I’m always skeptical when it comes to the work of 3rd parties. I’ve lost count of how many Auto Electricians have pointed the finger at the alarm yet fail to back it up with any solid evidence.

Take the above invoice for example:

Pull alarm fuse and leave the vehicle for 5 days = Must be the alarm.

It’s not exactly what I’d call an efficient use of time, and it’s certainly not best practice.

Doing a current draw test

So the alarm draws about 8mA. This is a super quick test to do and it is proof that the alarm is not the reason the car battery is going flat!

So what is happening with the battery?

I put the multimeter on the battery and had a quick look:

It’s pretty obvious that something on the Clock/Room fuse that is causing the battery to go flat.

So much of my job is trying to keep an open mind and not jumping to false conclusions. It’s satisfying to get a result, but also super frustrating to have to deal with these complaints. Sadly it happens far too often! 

I’m now making an effort to put more of these stories on the Trouble Shooting section of the blog. Hopefully, some people will read it and learn!

It did not take me 5 days to get to this stage and unlike the Auto Electrician who is probably not an alarm specialist, (well they have AVS listed on their website) I actually have some evidence. ?


Posted in Car Alarms, Installers, Trouble Shooting! | Tagged | Leave a comment

Alarm Troubleshooting…

Troubleshooting is always interesting…

Especially when you’re looking at an issue someone else has caused!

I got approached by a client to have a look at their alarm system. It did work but since Auto Electrician had installed the new car stereo it does not work. In fact, the car is now immobilised and stuck in his garage!

The Auto sparky wanted to replace the alarm with another “5 Star system” and didn’t seem to think that his work had caused the issue.

So I arrived to look at the car (a 2006 Subaru Legacy) and found it has a factory transponder immobiliser and an AVS S5!

The AVS remote no longer works and both of the Subaru remote controls have stopped working too.

Testing the remotes

Remote Frequency Tester

First off I needed to know if the remote controls actually worked or not. As with all troubleshooting, it’s a process of elimination.

I got my remote frequency tester out and found that both the Subaru remote controls were transmitting as they should. The AVS one had failed.

Next, I looked to see if a door had been left open. Often a car will not respond to the remote when a door is open so it’s a simple check.

Upon doing this I noticed that all of the interior dome lamps were not working. I asked the customer and he confirmed that it used to work fine beforehand.

Check the Fuses

Blown Fuse

I then got out my trusty power probe and when to the vehicles fuse box:

I found this blown 20 amp fuse after 30 seconds, then replaced it.


The internal lamp now works, as does the keyless entry.

I unlock the car and the pointless AVS Immobiliser also disarms.

One happy customer who I advise not to get an AVS alarm in his next car because it will be killing his battery. Of course, he already knows this as he’s read my blog!


Posted in AVS, Trouble Shooting! | Tagged | Leave a comment

AA Car Alarm!

AA Car Alarm

AA Car Alarm

According to a blog post by the AA car alarms are slowly dying.

It states that most of us are immune to them going off. I happen to agree with that part as there’s some truth in it.

But why?

There are so many shit quality alarms with over sensitive impact sensors and rusty bonnet switches it’s not funny.

Then comes the lack of competent installers. Every car audio shop and DIY mechanic thinks that they can install an alarm!

Most of them can install an alarm, it’s just that they don’t do a very good job! This is why so many are not reliable and they have such a bad reputation.

Would you trust an AA car alarm?

The irony was not lost on me when I found out that the AA alarm install alarms. It turns out very badly too!

Watch the video below…

2006 Toyota Hilux – Previously an AA Service Vehicle

So I inspect the alarm because the doors randomly lock (this turns out to be a faulty tactile switch in the remote control). There is also the issue of two doors that do not lock as the hacked central locking install has fallen to pieces!

The front door lock actuator was attached to a random piece of wood, by a hodgepodge of miscellaneous bolts and screws as shown in the photo below!

AA Car Alarms

AA central locking

I’m curious about the legal implications of what the AA has done to the central locking. It only takes a press of the remote button to lock the doors (remember that the faulty remote was locking them). What would happen if you needed to get out of the vehicle in an emergency?

What about the rest of the Install?

The immobiliser remote next to the factory immobiliser warning LED

Well first off the AA chose to install a Dynaton D7800 which comes with Dual immobiliser. The Hilux already has a factory transponder immobiliser so it really didn’t need an additional one.

Then came all the usual faults such as the rusted bonnet switch and a crap siren location.

I could go on…

But the point is simple. The AA really should stick roadside assistance as they clearly don’t have any competence when it comes to vehicle security! Yet they can publish a blog a post about an issue which they have helped to create! 🙁


Posted in AA, Car Alarms, Car Security | Tagged | Leave a comment

New Toyota RAV4 upgrade alarm

The New Generation Rav4 (XA50) is another new vehicle that lacks an alarm. It has an immobiliser as standard and all models other than the entry-level GX have SmartKey proximity entry.

The Vodafone Automotive AK4615 is the perfect Rav4 upgrade alarm. It works flawlessly with all models. I know this because I was involved in mapping the CAN-BUS data for it earlier in the year.

RAV4 upgrade alarm
The New XA50 Toyota Rav4 does not come with an alarm

Here is a quick video which I took after installing one last week:

The alarm can roll the windows up upon arming for anyone who wants this feature. The Author Comfort Closure system also works on the RAV4.

Here are some photos of the details.

RAV4 upgrade Alarm works with the Proximity locking and the Smartkey buttons
Ultrasonic movement sensors look factory-fitted but are actually my handy work.
Cobra alarm LED
Vodafone Automotive LED over-ride button in the RAV4

Details about the past generation of Toyota RAV4’s can be found here…


Posted in CAN BUS Alarms, Cobra, Upgrade Alarms, Vodafone Automotive, Window Closure | Leave a comment

No Start? Let’s blame the alarm!

car won't startRecently I took a 3 day weekend down in Nelson lakes to climb some mountains and play in the snow. Whilst I love my work, I value my playtime even more.

Not everyone respects work hours so I normally turn my phone to flight mode for the weekends. It also ensures I have some battery life left when I need it!

It’s not uncommon to find multiple voice mails, text messages, and emails when I connect back to the digital world. People get super needy when their car does not start!

Here is a typical example of what I have to deal with:

It’s really rare for immobilisers to fail (well decent ones at least), however, I like to keep an open mind and not draw any conclusions until I see the car and find the actual fault.

This car had a Cobra AK4138 alarm/immobiliser. These are normally bombproof! Whilst I’ll never be arrogant enough to dismiss my handy work as the problem, I was starting to have some doubts, afterall two so-called professionals had pointed the finger.

Keeping an open mind!

One thing I’ve learned over the years is not to be defensive or to draw any conclusions.

Keeping an open mind is often a challenge, but it helps in all aspects of life. This is especially true when it comes to troubleshooting.

Confirmation Bias

I do understand how the mechanic and the AA chap drew the wrong conclusion. There are so many shit quality alarms fitted by incompetent installers that it’s not funny. I remove them on a weekly basis! It’s certainly one of the potential causes of the problem that needs to be eliminated.

But pointing the finger without any evidence is simply not cool. In fact, I’d even call it incompetent!

Another Happy Customer

So I’ve started the week with a very unhappy customer through no fault of my own, to being appreciated for my methods. (remember, don’t get defensive or take things personally!)

So much of my work is dealing with people. Often it’s harder than the actual installation work!

I not sure if I’ll ever master that aspect of it, but it’s certainly something I’ve got much better at over the years.

Posted in AA, Obsessive Installs, Trouble Shooting! | Leave a comment

AVS Versus Vodafone Automotive

How does an AVS alarm stack up against a Vodafone Automotive?

If you ask most of the local Car Audio shops they’ll probably tell you that AVS is better. But I’m more interested in hard facts over uneducated opinions.

Time to test the AVS A5 against the Vodafone Automotive AK4698.

Let’s start with the basics.

The Current Draw Test!

Having a flat battery sucks! It’s important that your alarm is not causing a parasitic drain as it won’t even work if your battery is flat. Let’s see how these two get on when wired up to the test bench:

The Vodafone Automotive claims to draw 8.5mA when armed. My multimeter read an average of 5.5mA

The AVS A5 has a sticker on the case saying 20mA. My meter read an average of 17.5mA

Note: I did not wire the siren up for either test.

Build Quality

Time to open up the case and see what is inside:

The AVS does not even come close to the Vodafone Automotive in terms of build quality. It looks like an old relic, even when compared to an old Cobra alarm made back in 1995. If I did not know better I have guessed that it was made in the early 1980’s!


I’ve had numerous rants about how pointless battery back-up sirens with over-ride keys are. But let’s assume the siren is not ripped out of the engine bay. What if the battery is disconnected or the wire is cut?

 I could continue, but I think you should have drawn some damning fact-based conclusions by now…

Posted in AVS, Car Alarms, Vodafone Automotive, You really should know... | Leave a comment

TX-11 Remote Repair

The Cyclops/Dynatron TX-11 Remote is the old remote for both the 3 Series and 7 Series of alarms.

When I say old they pre-date Obsessive Vehicle Security existence (April 2008) so I’ve not ever sold one. That said I have repaired heaps over the years and continue to do so.

Often a remote repair is as simple as replacing a tactile switch on the circuit board along with a quick clean up. I have a frequency reader so I can confirm it’s transmitting.

I also have some old alarms kicking about which I can wire up on the Obsessive test bench. This way I can code the remote to an alarm for testing. This is great when I don’t have access to the customer’s car. It’s always good to double-check it’s working perfectly before returning it.

I still stock replacement remote cases and tac switches for these remote controls.

About The TX-11 Remote

The TX-11 came with a Green LED for the 3 Series and a Blue LED for the 7 Series. The difference is that the 7 Series remote has a transponder chip inside.

TX-11 remote

Remote Case: $25.00

Green LED TX-11 Replaced by TX-111 (3 Series) or TX-90

Blue LED TX-11 Replaced by TX-90T (T for transponder)

I have a couple of reconditioned TX-11 remote controls kicking around for anyone who prefers the style.

Other Remote Controls

You can find the full range of remote controls I stock here… It includes which batteries the remote should use as I often find them with the wrong ones inside ?


Posted in Alarm Remotes, Cyclops, Dynatron | Tagged | 4 Comments