Plain-English guides
Clear answers on car tech and accessories
Learn how dash cams, scanners, mounts, lights, speakers, and chargers work, plus what to check before you buy or install.
Clear steps
Short guides that make each setup or fix easy to follow.
Source based
We use product details, manuals, and other public sources.
Kept current
Guides are reviewed and updated as products and details change.
Clear disclosure
Affiliate links are labelled. See how we earn on our disclosure page.
What we cover
Guides by topic
Pick a topic and get a simple guide.
Dash Cams
Dash cams explained: front and rear models, night recording, parking mode and how dash cams are fitted.
OBD2 Scanners
What an OBD2 scanner does, scanner vs code reader and how to use one, with beginner-friendly picks.
Phone Mounts
Car phone mounts for dashboards, vents and windshields, including options for thick cases and larger phones.
Car Speakers
Car speaker size guides, coaxial vs component speakers and fixes for common speaker problems.
Car LED Lights
Interior and exterior car LED lights: LED vs halogen bulbs, how to choose them and basic installation guidance.
USB Car Chargers
USB-A vs USB-C car chargers, fast charging for phones and what to check when a car charger stops working.
From the blog
Latest guides
See the newest guides and fixes here.
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How to Fix Hyper Flash Without a Resistor
Stop hyper flash by using an LED-compatible flasher, coding out lamp monitoring, or fixing wiring faults instead of adding resistors.
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Why Is Only One Side Speaker Not Working in My Car?
If one car speaker is silent, start with the balance and fader settings, then check the source output, wiring, amplifier channel, and speaker itself.
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Do USB-C Car Chargers Charge Faster Than USB-A Chargers?
USB-C car chargers are usually faster only when the charger, cable, and device all support higher wattage. This page compares wattage, ports, and cable…
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What Are Component Speakers in a Car and How Do They Work?
Component speakers split bass, midrange, and treble across separate drivers, which can improve clarity and imaging when installed and aimed correctly.
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How to Install a Dash Cam Without Hardwiring
Plug a dash cam into a 12V socket or USB port, then secure the cable and mount. See when parking mode needs a battery…
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How to Install LED Interior Lights in a Car Step by Step
Use a plug-in 12V kit for a temporary setup or hardwire with an add-a-fuse for a cleaner install. This guide covers placement, wiring, and…
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Choose the area you need help with from the topics above.
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About
About Exfig
Exfig publishes plain-English guides on dash cams, OBD2 scanners, mounts, audio, lights, and chargers. Each guide focuses on one clear question.
We may earn a commission from qualifying Amazon purchases made through links on this site. Read our affiliate disclosure.
How we write our guides
- Research-basedGuides start from real search questions and product details.
- Plain EnglishShort answers first, with no jargon.
- Updated when products changeWe revisit guides as products and advice change.