Have you seen videos of older car interiors being transformed with massive, sleek touchscreens and wondered how it’s done? You’re not alone. This guide explains everything you need to know about aftermarket digital displays, the popular upgrade that brings modern tech, style, and functionality to almost any vehicle.
The large digital screens you see replacing factory car stereos are often called aftermarket infotainment systems or “Android head units.” Think of them as a powerful tablet that has been perfectly designed to fit into your car’s dashboard. Unlike a simple stereo, these units are complete multimedia and command centers that run on a modified version of the Android operating system.
This means they can run apps, connect to the internet, and offer a level of interactivity far beyond what most stock systems provide, especially in cars that are a few years old. They are specifically engineered to replace the original radio and surrounding trim, creating a seamless, factory-like installation that dramatically modernizes the look and feel of your car’s interior.
Upgrading your car’s interior with a digital display is one of the most impactful modifications you can make. The benefits go far beyond aesthetics, fundamentally changing how you interact with your vehicle.
The most immediate change is the visual one. Replacing a cluster of buttons, knobs, and a small screen with a single, large, high-resolution touchscreen instantly makes an older interior look modern and luxurious. Many popular styles, often called “Tesla-style” units, feature a large vertical screen that can be 10 to 17 inches, dominating the center console in an elegant way. This declutters the dashboard and creates a clean, high-tech focal point.
This is where these systems truly shine. Because they are essentially Android tablets, they unlock a world of modern features:
The ad mentions this is an “affordable and quick” upgrade, and for the most part, that holds true when you consider the alternatives.
“Affordable” is relative, but compared to buying a new car to get this level of technology, it’s a bargain. The price for these aftermarket displays can vary widely based on brand, size, and features, but here’s a general idea:
When you consider that a factory tech package on a new car can cost thousands of dollars, spending under $1,000 to completely revolutionize your current car’s interior is a very compelling value proposition.
The “quick” part of the promise comes from the “plug-and-play” nature of most kits. These systems are designed for specific vehicle models, and they come with wiring harnesses that connect directly to your car’s existing plugs. There is typically no need to cut or splice wires.
One of the best things about this technology is its wide availability. The ad’s promise of “different variations for every taste and make of car” is accurate. Manufacturers produce custom-fit units for hundreds of different vehicles.
Whether you drive a popular truck like a Ford F-150 or Ram 1500, an SUV like a Toyota 4Runner or Jeep Wrangler, or a common sedan like a Honda Accord or Toyota Camry, there is very likely a digital display made specifically for your dashboard.
When shopping, you’ll find different styles to suit your taste:
The key is to search for a unit specifically made for your car’s make, model, and year to ensure a perfect fit and seamless integration.
Will I lose my steering wheel controls? No, almost all reputable aftermarket displays are designed to work with your factory steering wheel controls. The included wiring harness and internal software (called a CANbus decoder) translate the button signals so you can still control volume, skip tracks, and answer calls.
Do these units support factory features like the backup camera? Yes, most kits come with an adapter to connect to your existing factory backup camera. If your car doesn’t have one, these head units make it very easy to add a new, high-definition aftermarket camera.
Where is the best place to buy one of these displays? You can find them from a variety of online retailers. Amazon and eBay have a massive selection from many different brands. There are also specialized retailers, such as Phoenix Automotive, that focus exclusively on these types of infotainment systems and offer vehicle-specific packages and support.