Which Fuse To Hardwire Dashcam

Choosing the right fuse to hardwire a dashcam is crucial to ensure the safety and proper functioning of both the device and the vehicle’s electrical system. This article will guide you through the process of determining which fuse to use, providing essential tips and considerations to make the best decision for your specific vehicle and dashcam requirements.

Important Outline

To choose the correct fuse for hardwiring your dashcam, follow the outline below:

1. Determine the required amperage: The first step is to figure out the amperage needed for your dashcam. You can find this information in the device’s manual or on its power adapter. Most dashcams require a 12V power supply, with an amperage rating of around 1.5 to 5 amps.

2. Locate the vehicle’s fuse box: Check your vehicle’s manual to locate the fuse box, which is typically located under the dashboard, in the glove box, or in the engine compartment.

3. Select an appropriate fuse slot: Find an existing fuse in the fuse box that supplies power only when the vehicle is turned on, also known as an “accessory” fuse. This ensures the dashcam does not drain your car’s battery when it’s not running. The fuse should also have the same or slightly higher amperage rating as the dashcam to prevent overload.

4. Choose a fuse tap or add-a-circuit: To safely connect the dashcam’s hardwire kit to the existing fuse, use a fuse tap or add-a-circuit. This method will allow you to retain the original fuse’s functionality while providing power to the dashcam at the same time.

5. Connect the ground wire: The hardwire kit will have a ground wire that must be connected to a metal part of the vehicle’s chassis to complete the circuit. Make sure the connected area is clean and free of rust or paint for optimal grounding.

6. Test the installation: Before reassembling the fuse box, test your dashcam’s functionality to ensure it powers on and off with the vehicle. If there are any issues, double-check your connections and choose a different fuse slot if necessary.

7. Secure the wiring: Once everything is functioning correctly, secure the wiring and reassemble the fuse box cover. Make sure the wires are neatly tucked away to avoid interference with the vehicle’s operation.

By following this outline, you can safely and effectively hardwire your dashcam to your vehicle’s electrical system. This will provide continuous power to the camera, ensuring reliable recording and monitoring while on the road.

Step by Step Guide

In this section, we will provide a detailed step-by-step guide to hardwire a dashcam successfully.

1. Prepare the necessary tools: Gather all the essential tools you will need for the installation, including the dashcam, hardwire kit, fuse tap or add-a-circuit, trim removal tools, wire stripper, crimping tool, and electrical tape.

2. Plan your wiring route: Determine the path you will take to route the wiring from the dashcam to the fuse box. Consider ways to conceal the wiring for a cleaner and more professional finish.

3. Install the dashcam: Follow the manufacturer’s instructions to mount the dashcam to your vehicle’s windshield.

4. Connect the hardwire kit: Connect the hardwire kit to the dashcam’s power input.

5. Route the wiring: Run the wiring through the vehicle’s interior trim, plastic panels, and headliner towards the fuse box. Use trim removal tools if necessary to avoid damage.

6. Install the fuse tap or add-a-circuit: Remove the accessory fuse and insert it into the fuse tap or add-a-circuit. Then, insert the new assembly back into the fuse slot.

7. Attach the power wire: Connect the power wire from the hardwire kit to the fuse tap or add-a-circuit.

8. Connect the ground wire: As mentioned in the previous article, connect the ground wire to a metal part of the vehicle’s chassis.

9. Test the dashcam: Start the vehicle to test the functionality of the dashcam before finalizing the installation.

10. Tidy up the wiring: Secure the wiring with cable ties, clips, or adhesive mounts, and replace any trim or panels removed during installation.

Step by Step Guide with Bullet Points

For a quick reference, here’s a condensed version of the step-by-step guide:

– Gather tools and materials
– Plan your wiring route
– Install the dashcam
– Connect the hardwire kit
– Route the wiring
– Install the fuse tap or add-a-circuit
– Attach the power wire
– Connect the ground wire
– Test the dashcam
– Tidy up the wiring

Pros and Cons of Hardwiring a Dashcam

Before proceeding with the hardwiring installation, consider the advantages and disadvantages it offers:

– Continuous power supply for the dashcam
– Reduced risk of theft due to discreet wiring
– Preservation of the cigarette lighter port for other devices

– Requires additional installation steps
– Potential voiding of vehicle warranty, depending on the manufacturer
– Difficulty in transferring the dashcam between vehicles


Q: Can the hardwire kit damage my vehicle’s electrical system?

A: If installed correctly, a hardwire kit should not cause any damage to your vehicle’s electrical system. Choose the appropriate fuse and follow the manufacturer’s instructions carefully.

Q: Can I install a dashcam without hardwiring?

A: Yes, you can power your dashcam through the vehicle’s cigarette lighter port. However, this method may not offer continuous power when the vehicle is turned off, limiting the functionality of features like parking mode.

Q: Can I hardwire a dashcam to my vehicle myself?

A: If you are comfortable working with electrical systems and have the necessary tools, you can hardwire the dashcam yourself. However, if you are unsure or lack the required skills, it’s best to seek professional assistance.


Hardwiring a dashcam to your vehicle ensures a continuous power supply, discreet installation, and additional functionality like parking mode. By following the step-by-step guide provided, along with essential tips and considerations, you can successfully hardwire your dashcam for an efficient and secure setup. For those who lack the necessary skills or tools, seeking professional help is advised to ensure a safe and correct installation.

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