07/16/2026
💡 Quick tech tip!
In this video, I'm testing an LED light bulb with a drill battery.
You'll notice I connect it one way, then reverse the polarity—and it still lights up.
That's because many modern automotive LED bulbs are designed with internal circuitry that allows them to work regardless of polarity.
It's a simple feature, but it's one of those things that makes installation and troubleshooting much easier.
At Maximum Audio, we enjoy sharing the knowledge behind the installs just as much as the installs themselves.
Why Not Maximize It? 🚀