VIOFO HK3 Acc Hardwire Cable for A119 V3/A129 Plus Duo/A129 Pro Duo Dashcam

This is a great three wire hardwiring kit and is the third of three that I’ve installed. The first was the Plozoe which was a two wire power supply. If only one power and a ground are needed it’s a great product with the best value as it includes 4 sizes of fuse taps that by themselves usually cost $7 a piece. It doesn’t have an selectable battery low charge feature. The second was the Power Magic Pro: what a piece of over-priced garbage. First off, it didn’t work out of the box which many have reported. You’re forced to retain the cigarette-like plug to adapt it to the dash cam, which makes it the most antiquated and inflexible of the hardwire kits. Warranty is voided if you remove the plug for more streamlined, less bulky terminals. The fork terminal for the ground is tiny; most grounding points that you’ll find will be M6 (10mm socket) or 1/4” bolts, so you either not find a suitable connection or have to source a larger M6 terminal to replace it with. The Viofo three wire affords you a battery power wire for parking mode and an ACC wire to wake up the camera when you start the car. The circuit board allows for multiple battery low charge protection limits and has nonproprietary USB connections. Hopefully this will become the new standard for dash cam hardwire kits. You must source your own fuse taps or splice into the vehicle power supplies which most pros suggest. The Viofo A129 Pro Duo with this power supply has been the best combo for the price, ease of use and performance. The small screen makes setup and monitoring current operation convenient and takes up a very small piece of windshield real estate. The Vantrue failed mostly because it would never wake up from parking mode (a three wire system would alleviate this problem). The Black Vue is very cheaply made for the cost. It has some nice features that make it an enticing option, but it’s in need of some serious updates and material upgrades to justify cost. The camera plastic is very cheap and the front camera jiggles around in the base. It also lacks a screen interface to quickly assess mode and operation. Save your money.

The wires themselves feel very quality and not cheap at all. They give you so much length that I'd be surprised if anyone managed to run out with their install. Works as it should and that's all there really is to it. Easy enough to install at home with the help of some youtube videos (even for an idiot like me when it comes to wiring/electrical work). Highly recommend for any Viofo cam owners contemplating the purchase

Installed by running wires from the removable panel at the bottom left of the steering wheel. The panel easily pulls out and there is plenty room for wiring. Got the power and auxiliary power from the fuse box on the passenger side by using fuse taps. Used the USB fuse and a spare fuse that powers on when the vehicle starts. Ran the power cable to the camera up the pillar by removing the cover and being careful to wire tie it away from the airbag. Removed the sunvisor to lower the headliner enough to hide the wire under it. So far so good, it does what it was intended to do and the Suburban starts every time due to the low voltage cutoff.

Update: After talking with customer support, they sent me a tested working kit. They were quick to respond and send out the unit to me which I appreciated. The new kit works now, and my car has working hardwire with the parking mode! Old: Ordered a hardwire kit and after installing and troubleshooting for a while found the kit was DOA. Ordered a second one and it had the exact same problem. Does not provide any power when connected properly. I tested directly off the battery terminals as well as through fuse box and ground in car, no signs of power in either units. Seems to be a common problem with bad batches of these kits. Can not recommend viofo after this terrible experience, wasted hours of my time.

Installed a A129 Plus Duo on the wife's car a couple weeks ago and used the kit. Everything went together great. At the moment she's not driving much at all, her car sits for a week or so at a time, after the install I set the kits volt meter to 12.2V and in about a week after I last drove it I came home in my car and noticed it wasn't recording and the record light wasn't even blinking. I figured the kit must have shut down the parking mode to save the battery. When I got her keys to see if that was the case, sure enough the car started just fine and once running for a few seconds the camera came to life and started recording. Once she starts driving regularly again I'm confident that the kit will make sure her battery does die on her, specially with winter upon us.

Does what it says it will do. I bought two of these for two different cars. Both have parking monitoring when car is off and battery has not died in either one.

The old power supply failed. This on is much better, heavier gauge wire and coating.

I purchased this originally in July 2021. It is now August 2022 so barely a year later, the hardwire kit decided to stop working completely. The 1st telltale sign that your hardwire kit might be going out is when your dash cam turns on/off intermittently. It started with my VIOFO A129 Duo 4K turning back on and off randomly with the boot chime while driving (would happen every hour or so). The next stage was the dash cam going on an endless reboot cycle non-stop (after it boots up, it restarts again non-stop). The last stage is when it completely cut power to the dash cam. The first thing I checked were the fuses on the add-a-circuit fuse taps (one for ACC and the other for BATT). Those were all good. Next, I plugged the dash cam into a power bank and it powered up as it should. Because the dash cam turned on with a power bank, I knew the issue wasn’t the dash cam itself but the hardwire kit. The board chip inside the hardwire kit is faulty and that’s something that needs to be looked at with VIOFO. We spend so much $$$ on a good dash cam but have cheap accessories.. it doesn’t make sense. Luckily, I did all the work myself but I feel bad for others who have to take it back to the shop and pay for labor in order to get it swapped out… only to have it happen again shortly down the road.

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A must-have if you want your camera in parking mode. Works well and I like the different voltage cut-off settings. I have installed several of these on different vehicles now and I've always been satisfied.

also tut bisher was es soll, kabel sind lang genug, der knubbel (ferrid) nervt bei der installation, installation ist nicht für jeden etwas, da sollte man schon grob wissen wohin welches kabel und woher.. Der einzige Kritikpunkt für mich die per schieber einstellbaren spannungen (entladeschutz), höchster wert sind 12,4v (24,8v) das sind bei agm nur noch 60% bei regulären immerhin noch 70% ladung.. ausgelierfert wird mit 11,8v (23,6v) da wird es schwierig mit auto starten, entspricht nur noch 20%.. gut die cams brauchen im parkmodus auch nicht mehr so viel trotzdem find ich das schon grenzwärtig.. lieber wären mir die 4 stufen:12,2, 12,4, 12,6 und 12,8v.. enspricht etwa regulär 50, 70, 90 und 100%, agm 45, 60, 75 und 90% ladung..

Indispensabile x dash cam Viofo

VIOFO hardwire kit, this is second time I've purchased this, once for my car 2 years ago and now for my partners new car. Very happy, be sure to check your fusebox properly for which leg is live - plenty of guides/forums online for every car, easy self install. Paired it with a VIOFO A129 Plus Duo.