Accessories
7 Best Car Audio Crossovers in 2026: Active and Passive Picks
Seven active and passive car audio crossovers, with crossover points, slopes and setup advice.
The archive
Car audio reviews and buying guides
Everything we have published, newest first. Every product below was bought at retail, measured on the bench and installed in a car before a single word was written about it.
How-To
How to Get the Most Out of Your Stereo: Free Fixes and Smart Upgrades
Most car stereos sound worse than they should because of settings, not hardware. Start with the free fixes, then upgrade in the order that pays off.
Troubleshooting
How to Fix Car Speakers Crackling: 7 Steps to Find and Fix the Cause
Crackling on bumps, at high volume or from one speaker each has a different cause. Here is how to find yours and fix it at the wiring, settings, amplifier or speaker.
Head Units
7 Best Kenwood Car Stereos in 2026: Touchscreen and Single-DIN Picks
Seven Kenwood and eXcelon receivers for single-DIN and double-DIN dashes, compared by phone integration, preamp outputs and radio features.
Troubleshooting
How to Stop Vibration From a Subwoofer in Your Car: 7 Proven Fixes
Most subwoofer rattles come from a handful of panels and parts. Here is how to find each one with a test tone and fix it for very little money.
How-To
How to Test a Car Amplifier With a Multimeter: 8 Checks and Normal Readings
Eight multimeter checks, from fuses to DC offset, with the readings a healthy amplifier should give and what each bad reading means.