The Ultimate Horn Solution is a covert security upgrade built for the Holden VF Commodore. We move your real horn out of the firing line, then fit a decoy in its place — wired so that any attempt to silence it sets the alarm off.
Thieves go for the horn before anything else — kill it and your alarm can scream to an empty street.
On the VF, the factory horn sits where a determined thief knows to find and disable it.
Getting at the horn or its wiring often means prying at a door or panel — costly damage on its own.
Once the horn's gone, the loudest, most effective part of your security goes with it.
Built in conjunction with Ultimate Conversion Wiring, the Ultimate Horn Solution relocates your real horn and replaces it with a booby-trapped decoy — so the move a thief makes to go quiet is the move that gives them away.
We move the factory horn out of the standard position, clear of the spot a thief goes for first — so the horn that actually sounds your alarm keeps working exactly as it should.
A new factory-style horn goes back in the original position, wired independently of the real one. It looks completely standard — and like the obvious thing to disable.
Cut or disable the decoy and that action triggers your factory and/or IGLA alarm. The thief gives themselves away, while your door and wiring stay intact.
This isn't a generic add-on bent to fit. The Ultimate Horn Solution was designed specifically for the Holden VF Commodore, in conjunction with Ultimate Conversion Wiring, so it sits and behaves exactly like factory.
Whether you're running the factory alarm, an IGLA system, or both, the decoy ties straight in. Any attempt to silence your horn becomes the trigger — and it's a natural partner to a covert IGLA immobiliser.
A VF Commodore horn relocation kit does something worthwhile: it moves your horn out of the first place a thief reaches for. If you’ve already fitted one, your car is in better shape than the one parked next to it. Ours relocates the horn too — to much the same sort of place, and we don’t pretend otherwise.
The difference is what a thief finds when they go looking. With a kit, they find an empty bracket — and that tells them something useful: there’s no horn to cut here, so the alarm isn’t going to be silenced this way. So they stop trying to stop the alarm and start avoiding it. Opening a door would trip the perimeter sensors, so they don’t open one — the window goes in instead, and they lean through the opening to reach the OBD port.
On an untouched VF, cutting the horn is the whole plan: with the alarm effectively dead, they can take their time on the door lock. The Ultimate Horn Solution leaves that position looking exactly as it left the factory, so there’s nothing to work out and nothing to work around. The thief goes for what they came for, cuts it, and the alarm goes off while they’re still standing outside the car. Most of these attempts are opportunistic — and an opportunist who has just set off an alarm they thought they’d killed usually leaves before the glass goes in.
| A typical VF horn relocation kit | Ultimate Horn Solution | |
|---|---|---|
| Real horn moved out of the factory position | ✓Yes The core of the idea, and a sound one — the horn no longer sits where the first cut lands. | ✓Yes Same move, to a comparable spot. This part isn’t what makes the difference — the next row is. |
| What’s left in the original position | –An empty bracket Nothing to cut. Which reads, to the person crouched at your wheel arch, as: the alarm can’t be stopped from out here. | ✓A factory-style decoy It looks like the standard horn because it needs to. Giving nothing away is the entire point — we want it cut. |
| What the thief does next | ·Goes in through the glass They stop trying to stop the alarm and start avoiding it. Opening a door would trip the perimeter sensors — a smashed window doesn’t, so they lean through the opening and go for the OBD port instead. | ✓Cuts the decoy They do exactly what they came to do, believing it has worked — and that action is what sets the alarm off. |
| When your alarm actually sounds | –It may not sound at all The alarm still works — but nothing has been opened, so as far as it’s concerned nothing has been breached. Going through the glass is how they keep it that way. | ✓Before they’re into the car It sounds at the wheel arch, while the glass is still intact — and it sounds because of something they chose to do. That is the whole reason the decoy is worth fitting. |
| What a failed attempt typically costs you | ·A window, at least Glass and trim if they give up there — and a good deal more if they reach the OBD port with the alarm none the wiser. That bill runs well past what either option costs to fit. | ✓A cut decoy horn If they abort at the noise, the damage is a couple of cut wires in the wheel arch — around $75 to fix and re-test, against a windscreen or a broken door lock. |
| A planned, tooled-up theft or a tow-away | –No Someone who arrived prepared isn’t deterred by noise, and a car on a truck doesn’t need starting at all. | –No — and we won’t claim it An alarm is a deterrent, not a lock. Stopping a prepared thief from driving the car away is the immobiliser’s job — that’s what IGLA is for, and the two are designed to sit together. |
| How it’s fitted | ·Supplied as a DIY kit Posted out as parts and a harness for you or your workshop to fit. The result depends entirely on who does the work. | ·Fitted and tested in-house Installed by a licensed vehicle security specialist at our Kellyville or Wilberforce workshop. A deliberate, professional splice into the loom, planned for the fewest connection points possible — then tested before the car leaves. |
| What it costs | ·Under $200 for the kit Plus fitting, or an afternoon of your own with the wheel-arch liner out. | ·$600 installed Parts, professional installation and testing, at either workshop. Holden VF Commodore. |
Then you’ve already made the useful move, and you’re not starting from scratch. Bring the car in and we’ll look at where the kit put your horn, work out what carries over, and quote you on adding the decoy and wiring it into your alarm.
Talk to us about upgradingA quick look at how the system relocates your horn and turns a thief's first move into a dead giveaway.
Every Ultimate Horn Solution is installed in-house by a licensed vehicle security specialist and authorised IGLA installer for NSW — not subcontracted, not rushed.
We don't travel to you. Your VF is fitted properly at our Kellyville or Wilberforce workshop, then tested before it leaves.
Master Security Licence: 000110058 · Class 2C Operative Licence: S00016156
Book your Holden VF Commodore in at our Kellyville or Wilberforce workshop and drive away with the Ultimate Horn Solution fitted — $600 installed.