Did I Hardwire My Dash Cam Correctly? Key Signs and Fix Tips
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Time to read 7 min
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Time to read 7 min
A dash cam adds another layer of safety to your vehicle. You get to record any event that happens during your drive. Many drivers ask, "Should I hardwire my dash cam?" This is a smart question. When you hardwire, you connect your dash cam directly to your car's fuse box. This provides a neat appearance, and you also get features such as parking mode.
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When you bring home a new dash cam you can choose to plug it into your car's lighter socket or you can go for a hardwire setup.
Many cars come with only one or two 12V sockets. You may need these for a phone charger or another device when you drive. If you use your dash cam with this socket, it means you cannot use it for other things. With hardwiring, your dash cam takes its power directly from the fuse box.
Hardwiring unlocks advanced features. One of the best is parking mode. After you hardwire, your dash cam watches over your parked car. If something or someone bumps your car, your camera records what happens.
Loose cables can block your view or look untidy across your dashboard. When you hardwire, you can tuck all wires behind your car's panels and along the frame. This makes your installation look neat and almost invisible.
While a proper hardwire job is helpful, a mistake can cause problems for your dash cam or even your car.
If the wires are not linked properly at the fuse box, the camera may turn off and on without warning. Your dash cam might miss parts of your drive. In these cases, you may not have the footage you want in case of an emergency.
If you connect to a circuit that always has power, but forget to use a voltage protection kit, the dash cam could pull energy from your battery even when your car is off. This will leave you unable to start your car. If you use a Redtiger hardwire kit, you can avoid this common problem.
A dash cam needs a steady supply of power while it records your video. If the power stops without warning, a file may become damaged and cannot play back. This means you could lose important video, and the footage you hoped to keep might not exist.
Mistakes, such as choosing the wrong fuse or adding too many devices to one fuse, could lead to a blown fuse in your car. In some cases, the car's electrical system could be damaged, and repairs might cost a lot.
If you want to know for sure that your dash cam is wired right, there are a few things you can check.
You want your dash cam to switch on when you start your car and turn off when you stop. If this happens, your dash cam likely connects to the correct ACC (switched) fuse. When you shut off your engine, your dash cam turns off or enters parking mode if you picked that feature.
After wiring for parking mode, your dash cam should keep watch over your car once you shut the engine off. The camera should be ready to record anything that happens to your car while parked. You can leave your car for a while and check if your dash cam captures any bumps or movement.
A clean, professional hardwiring installation hides all cables out of sight. The power cable should run behind your car's interior panels and along the trim to the fuse box—no loose wires hanging around your dashboard or floor.
At the fuse box, each wire must be connected to the correct point:
When done correctly, your dash cam looks cleanly integrated and functions smoothly in both driving and parking modes.
Read more: How to Hide Dash Cam Wires: A Clean Setup for Your Car
When you open your fuse box, both the fuse tap and the original fuse need to fit firmly. The ground wire should attach tightly to a metal bolt part on your car's chassis, with no loose wires.
Knowing the steps can help you get the best results. You can also use this list if you want to check a finished job.
Start by finding your car's fuse box. The owner's manual will point you to the right spot. Usually, it hides under the dashboard or in the engine area. Find two important fuses: one for power that turns on with the key (ACC) and one that has power all the time (constant). A circuit tester is helpful for this.
You need a fuse tap for safety and a proper connection. The Redtiger kit comes with the necessary taps. You will gently remove a fuse, put it into the tap, then push the tap into the slot. Both fuses stay safe and your car's wiring stays untouched.
Your dash cam also needs a good ground. Find an unpainted metal bolt near the fuse box. Remove the bolt just enough to slide in the ground terminal, then tighten it back again. A strong ground link means your camera will always receive steady power.
Starting from your dash cam, guide the wire up toward the roof, along the edge, down the A-pillar and toward the fuse box. Only use gentle pressure so nothing gets pinched. A blunt trim tool helps tuck the wire so it stays hidden and neat.
Once finished, turn your car's key to check the dash cam. The dash cam should turn on, record and then stop as you switch your car off. Make sure your camera enters parking mode if you chose it. Double-check that your camera shows a live image, so you know you did everything right.
Read more: Why Should You Hardwire Your Dash Cam
Even if you take care with hardwiring, you could face small troubles after your setup. Each problem can have a simple fix once you check a few areas. You need to check wiring, fuses and your ground point to find the cause.
Issue |
Possible Cause |
Solution |
No power to dash cam |
Loose fuse tap or poor ground connection. |
Reseat the fuse tap firmly and ensure the ground wire is attached to a bare metal bolt on the chassis. |
Parking mode not working |
The constant power wire is connected to an ACC fuse. |
Use a circuit tester to find a fuse with constant power and move the wire to that slot. |
Camera never turns off |
The ACC power wire is connected to a constant fuse. |
Find a fuse that is only active with the ignition on and connect the ACC wire there. |
Battery drains quickly |
The hardwire kit lacks low-voltage protection. |
Use a quality hardwire kit like one from Redtiger that automatically cuts power when the battery voltage drops too low. |
If you have wondered, "Did I hardwire my dash cam correctly?" you can feel more sure about your answer now. The right hardwiring setup means you get a neat car, full parking mode and you keep your sockets open. By checking each point in this guide, you are more likely to have your dash cam work every time you start your car.
Choose a good hardwire kit for your dash cam. The Redtiger hardwire kit helps keep your battery safe with features like low-voltage protection and overcurrent protection. This means you avoid battery drain and protect your camera from power spikes. All these bring extra peace to your daily drive.
Many car owners worry about this point. When a modern hardwire kit like the one from Redtiger, is used, your dash cam will not drain the battery. These kits monitor your battery's voltage. If voltage drops too much, the kit will cut off power to the dash cam, so you can still start your car.
An ACC fuse gets power only when your key is turned and your car is running. A constant fuse gets power all the time, even with the car switched off. You need to use both for your dash cam if you want all features. ACC turns your camera on and off, while the constant fuse activates parking mode.
You can hardwire your dash cam in most electric cars just like you do in other vehicles. Electric vehicles have a 12V system for things like lights and radio and your dash cam can use this safely. It is important to use a proper hardwire kit and be careful working with your car's wiring. If you ever feel unsure, ask a professional to help fit your dash cam.