Plan the front and rear camera positions
Sit in the driving position and identify areas that do not obstruct your view. Check the rear glass movement, demister lines, wiper coverage and cable entry before removing adhesive liners.
Gearjury may earn a commission when you buy through a retailer link.
Guide
How to Install a Dash Cam Front and Rear
Mount both cameras only after checking their views, then route the interconnecting cable without crossing airbags or moving trim. Use professional fitting if the safe path or electrical connection is uncertain.
Clean the glass and test the image
Clean and dry both mounting areas. Power the system temporarily, use its screen or app to confirm the horizon and make sure trim, spoilers and the bonnet do not dominate the frame.
Fit the front camera
Place the front unit high enough for a clear view but outside the driver's critical sightline. Leave access to the card and controls, then allow adhesive to bond for the time specified.
Route the rear-camera cable safely
Follow the headlining edge and existing trim path without putting the cable over curtain airbags. Leave suitable slack at a hatch or tailgate and use the maker's recommended routing method.
Mount and connect the rear unit
Keep the lens clear of demister elements where practical and orient it correctly. Secure each connector so vibration or opening the boot cannot strain it.
Choose socket power or hardwiring
A plug-in adaptor is easier to reverse; hardwiring can enable a cleaner fit and parking mode. Use only a compatible kit and have a qualified fitter identify circuits when necessary.
Verify recordings before driving
Check both channels, timestamps, audio setting and card status. Take a short stationary recording, play it back and recheck cable clearance around mirrors, pedals, airbags and moving panels.
Common questions
Questions before you buy
Can I install a front and rear dash cam myself?
Yes, if you can follow the vehicle and camera instructions and route cables safely. Complex trim, airbags or hardwiring are good reasons to use a professional.
Where does the rear dash-cam cable go?
It normally follows protected trim edges between the cameras, avoiding airbags and sharp or moving parts. Hatchbacks need enough controlled slack for the tailgate.
Should the rear camera go at the top or bottom of the window?
Choose the position with the clearest wiped view and least obstruction, while avoiding interference with the driver's rearward view. Follow the model's orientation instructions.
Does a front-and-rear dash cam need two power supplies?
Most kits power the rear camera through the front unit, but designs differ. Use only the cables and power arrangement specified for your model.
Sources and how we chose
- Nextbase, dash-cam installation guide · 2026-10-15
- Vantrue, installation and manuals · 2026-10-15
Keep exploring
Related guides
Front and Rear Dash Cams for Two-Way Coverage
A dual-camera kit is the direct choice when you want the road ahead and traffic behind in the same recording system. Check rear resolution and cable length, not just the headline front-camera specification.
The Best Dashcams in the UK for 2026
The Nextbase 622GW is our balanced UK pick for its detailed recording, stabilisation and accessible touchscreen. Garmin Mini 3 suits a discreet fit, while VIOFO A329S covers the front and rear at high resolution.
Nextbase Dash Cams: Compare the UK Range
The 622GW has the strongest recording specification in this trio; the 522GW keeps the large touchscreen and polarising filter at 2K, while the 322GW covers the essentials.
Dash Cams for Cars: UK Buying Guides and Comparisons
Start with the coverage you need: a discreet front camera for the road ahead, or a front-and-rear system for evidence from both directions. Our guides then narrow the choice by installation, connectivity and brand.