Install a Dashcam in Your Car
A dashcam is the witness that never blinks — but the wiring questions stop most people: will it drain the battery, how do the cables hide, does it record when parked? The basic install needs no tools beyond a trim tool and patience: power from the 12V socket or a hardwire kit, cable tucked along the headliner, camera behind the mirror.
TL;DR / Quick Fix
Mount the dashcam behind the mirror where wipers clear the glass, tuck the cable along the headliner and door seals to power, and use the 12V socket for the install. A hardwire kit adds parked recording. Format the memory card in the camera first. The GoPro settings guide shares basics.
Follow these steps
- Choose the mounting spot. Behind the rearview mirror, on the passenger side — hidden from your view, seeing what you see, within the wiper sweep. Clean the glass with the included wipe first.
- Mount with the adhesive or suction cup. Press firmly and hold. Adhesive mounts are steadier long-term; suction cups suit leased cars. Let adhesive cure before driving if the manual says so.
- Route the cable along the headliner. Tuck the cable into the headliner edge, down the A-pillar (behind the airbag path — check your manual), and along door seals to the power source. A plastic trim tool prevents scratched panels.
- Power it simply first. Plug into the 12V socket or USB port for the basic install — the camera starts and stops with the car. Consider a hardwire kit later only if you want parking surveillance.
- Format the card in the camera. Use the camera's own format function on a high-endurance card. Computer-formatted cards cause the mysterious 'card error' failures.
- Test the angle and footage. Record a short drive and watch it on a bigger screen. Adjust the angle so the horizon sits right and plates are readable — then leave it alone.
What NOT to do
- Do not route cables across airbag paths. The A-pillar covers airbags — tuck behind them per your car's manual, never across their deployment path.
- Do not use a random old memory card. Dashcams overwrite constantly; only high-endurance cards survive — regular cards die young and corrupt footage.
- Do not mount where it blocks your view. Low on the windshield in your sightline is illegal in many places and unsafe everywhere.
- Do not skip the test footage. A mis-aimed camera records beautiful sky while missing the license plates — verify once.
Frequently asked questions
Will it drain my car battery?
On socket power, no — the socket usually dies with the ignition. Hardwired parking mode uses little power but can drain a weak battery over days; kits include voltage cutoffs.
Do I need front and rear cameras?
Front covers most incidents; rear adds rear-end collisions and parking evidence. Dual-channel kits cost more but tell the whole story.
Is dashcam footage legal as evidence?
Generally yes in most places, though audio recording and privacy rules vary. Check local laws, especially about recording audio inside the car.