Double the Coverage: Install a Dual Dash Cam with Ease!
How to Install a Dual Dash Cam
In today’s world, visibility on the road isn’t just helpful it’s essential. Whether you’re navigating busy city streets or cruising regional highways, nothing captures a clearer picture of your journey like a dual dash cam. These systems simultaneously record front and rear views, offering complete road coverage and peace of mind for Victorian drivers.
But with this increased protection comes an important question: How do you install a dual dash cam correctly and safely? In this comprehensive guide, we’ll walk you through everything you need to know from the basics of wiring and power sources to professional installation vs DIY, best cable routing practices, and expert tips for maximising reliability.
Why Choose a Dual Dash Cam for Your Vehicle?
Before diving into installation, let’s clarify why dual dash cams are increasingly becoming the go-to choice for drivers.
1. Comprehensive Road Coverage
Dual dash cams simultaneously record the front of your vehicle and what’s happening behind it. This not only helps with collision evidence but also protects against rear-end crashes, hit-and-runs, insurance disputes, and vandalism. Front cameras alone can miss important events occurring behind your vehicle, making dual coverage a significant upgrade.
2. Enhanced Parking Mode Security
Many dual dash cams today support parking mode a feature that records motion or impacts even when the car is off. This extended surveillance capability is particularly valuable in busy Melbourne streets or regional centres where vehicles may sit unattended for long periods.
3. Insurance and Legal Benefits
High-quality dash cam footage including simultaneous front and rear recordings can be critical when lodging insurance claims or disputing liability after an incident. The extra perspective often provides clearer evidence and faster claim resolution.
A dual dash cam effectively doubles your protection and installation quality directly influences how well it performs.
Understanding the Components of a Dual Dash Cam System
Installing a dual dash cam requires more parts than a single-channel setup. Understanding these components is key to a smooth install.
Primary Components
- Front Camera Unit – Mounted near the rear-view mirror, capturing traffic ahead.
- Rear Camera Unit – Positioned on the rear windscreen to capture activity behind the vehicle.
- Front-to-Rear Cable (2CH) – Connects both cameras and transmits power and data.
- Power Source Cable – Supplies constant power to the system, either via the cigarette lighter socket, hardwiring kit, or OBD-II power cable.
Optional Components
- Hardwire Kit – Enables parking mode by connecting to your car’s fuse box.
- OBD-II Cable – A plug-and-play alternative providing constant power without complex wiring.
Battery Pack – Offers extended recording time without draining your vehicle’s battery. - Memory Card – Typically high-endurance microSD for continuous recording.
Understanding these basics will help you choose the right installation method for your budget, experience, and vehicle.
Step-by-Step Guide: How to Install a Dual Dash Cam
Below is a detailed, step-by-step walk through of installing your dual dash cam safely and effectively.
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Plan Your Installation Location
Before mounting anything:
- Decide the mounting position for both front and rear cameras.
- Place the front camera near the top centre of the windscreen, ideally behind or close to the rear-view mirror for an optimal field of view.
- Mount the rear camera on the rear windscreen where it has a full view of traffic behind.
Dry fit both units first to visualise where cables will route before peeling adhesive backing from the mounts.
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Clean and Prepare Surfaces
- Wipe the selected mounting areas with alcohol wipes to remove dust and grease.
- Clean surfaces ensure the adhesive mount sticks properly and holds the camera securely over time.
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Mount the Cameras
- Install the front unit behind or just beside the rear-view mirror not too high that ceramic dots on the windscreen obstruct the lens.
- Ensure the camera faces squarely forward without tilting.
- Then mount the rear camera on the rear windscreen, centred if possible, just below the top edge of the glass.
The positioning affects the field of view and video quality getting this right at the start saves time later.
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Route the Power Cable
There are three ways to power your dual dash cam:
Option A: Cigarette Lighter Socket (Easy Plug-and-Play)
- Run the cable from the front camera up to the roof lining.
- Tuck it behind the headliner and down the A-pillar.
- Continue routing under the door weather stripping to the footwell.
- Finally plug it into the 12/24V socket.
This method powers the dash cam only when the car is on parking mode won’t be available.
Option B: Hardwiring Kit (Professional Power & Parking Mode)
Hardwiring provides constant power and enables parking mode.
- Locate the vehicle fuse box.
- Use a fuse tap/add-a-fuse adaptor to safely connect the dash cam’s hardwire cable.
- Ensure you choose the correct fuse circuits (constant and accessory) to avoid interfering with vehicle electronics.
- Route cables tidily along the headliner and pillars, away from airbags and control modules.
Safety Warning: Hardwiring requires electrical knowledge if you’re not confident, always choose a professional installer.
Option C: OBD-II Power Cable (Plug-and-Play Parking Mode)
- Simply plug into the vehicle’s OBD-II port under the dash.
- This provides constant power for parking mode without the complexity of fuse box wiring.
This is ideal for DIY installers who want parking mode without hardwiring.
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Route the Front-to-Rear Cable
Installing the rear camera requires routing the cable from the front unit:
- Run the 2CH cable up the windshield.
- Tuck it behind the roof lining.
- Guide it along the ceiling towards the rear windscreen.
- For hatchbacks, leave enough slack near the rear door hinge to allow opening and closing without tension.
Professional installers may use a “fish rod” or cable puller to feed cable through the roof lining safely, especially to avoid interfering with airbags or trim components.
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Connect, Power Up, and Test
Once all cables are in place:
- Connect both cameras.
- Turn on the vehicle and confirm that both front and rear units power up and begin recording automatically.
- Test settings including parking mode if hardwired or using OBD-II.
Proper testing ensures that each camera records correctly and transitions from drive mode to parking mode without error.
DIY or Professional Installation: Which Should You Choose?
Both options have advantages but they’re suitable for different drivers.
DIY Installation: When It Works
DIY installation is feasible if:
- You’re using a plug-and-play cigarette lighter or OBD-II power solution.
- Your vehicle has easily accessible trimming and wiring paths.
- You’re comfortable with basic cable routing and using trim tools.
Advantages
- Lower upfront cost
Flexibility to install at your own pace - No need to book an appointment
Drawbacks
- Limited parking mode functionality if not hardwired
- Risk of messy wiring if not done neatly
- Potential interference with airbags or electronics if done incorrectly
Professional Installation: Optimal for Dual Dash Cams
Professional installers have the tools and experience to:
- Route wires discreetly behind trim and headlining
- Choose safe fuse circuits for hardwiring
- Enable full parking mode with voltage cutoff protection
- Avoid interference with airbags and sensitive control modules
According to customer reports and industry pricing in Australia, full installation for dual dash cams typically costs between $250–$350 AUD, though exact rates depend on vehicle type and installer expertise.
Benefits
- Factory-like finish with hidden cables
- Reliable parking mode setup
- Warranty protection both for camera and vehicle systems
- Time-efficient usually completed in 1–2 hours
Professionals can also recommend battery packs or voltage protection modules for extended parking recordings.
Common Questions About Dual Dash Cam Installation
Q: Can I use a battery pack instead of hardwiring?
Yes battery packs (e.g., CELLINK) provide continuous power for parking mode without tapping into the fuse box.
Q: Will hardwiring void my vehicle warranty?
No when done by a qualified installer using proper fuse taps and techniques, hardwiring doesn’t automatically void warranties. Manufacturer and warranty terms vary, so checking with your provider is always recommended.
Q: How long does dual dash cam installation take?
Expect about 1–2 hours for a professional dual dash cam install, depending on vehicle complexity.
Maximising Dual Dash Cam Performance After Installation
Once installed:
- Adjust camera angles for optimal road coverage.
- Choose a high-endurance microSD card for recording reliability.
- Test parking mode functions.
Connect cameras to mobile apps if available for remote viewing and alerts.
Final Thoughts: Dual Dash Cam Installation Made Simple
Installing a dual dash cam is a smart step toward better vehicle security, increased evidence capture, and daily peace of mind. Whether you choose to install it yourself with plug-and-play options or engage a professional for hardwiring and cable concealment, understanding the process will help you make the best decision for your car and driving habits.
Dual dash cams are more than a gadget they are a safety and evidence tool, and installing them properly ensures they do their job when it counts most.