How do I choose an aftermarket head unit?
An aftermarket head unit refers to a replacement car stereo that can be installed in place of the factory head unit. There are several reasons why someone may want to upgrade from their stock car stereo to an aftermarket head unit:
Factory car stereos often lack features and customization options compared to aftermarket units. Aftermarket head units allow you to add navigation, better audio quality, smartphone integration, entertainment apps, and more. Upgrading gives you the ability to customize your car’s audio system to suit your needs and preferences.
The sound quality of factory stereos is often mediocre, while aftermarket stereos can provide much clearer audio with customizable equalizers. Aftermarket units also allow you to add amplifiers and upgrade your speakers for even better sound.
Newer aftermarket head units have Apple CarPlay and Android Auto integration to mirror your smartphone’s interface. This allows you to access music, maps, messages, and apps right from your dashboard. Factory stereos lack this kind of smartphone connectivity.
When choosing an aftermarket head unit, key features to look for include:
- Touchscreen interface
- Display size
- Smartphone integration
- Navigation capabilities
- Audio quality and adjustments
- Entertainment apps
- Bluetooth hands-free calling
Display Size
When choosing an aftermarket head unit, one of the first decisions is whether to get a single-DIN or double-DIN sized unit. Single-DIN head units are 2 inches tall by 7 inches wide, while double-DIN units are twice the height at 4 inches tall by 7 inches wide (Crutchfield). The double-DIN size allows for a larger display and more features like touchscreens or motorized screens. However, not all vehicles can accommodate a double-DIN unit, so you’ll need to measure the dashboard opening to ensure a proper fit.
Most modern vehicles use the double-DIN size, but older cars may only support single-DIN. Measure the height and width of the dashboard stereo opening to confirm which size your car needs. Pay attention to any brackets or screws already installed as clues. Going from a single-DIN factory stereo to an aftermarket double-DIN will require a dash kit adapter bracket as well (Lifewire). Consider getting help from a professional installer if changing stereo sizes in your vehicle.
Touchscreen vs Buttons
When choosing between a touchscreen or button control head unit, there are some key factors to consider:
Touchscreen Pros:
- Sleek, modern appearance
- Intuitive controls and gestures like swiping and pinching
- Customizable interface with moveable icons and menus
- Often supports handwriting recognition
- Can display more information and graphics
Touchscreen Cons:
- Can be distracting to interact with while driving
- Smudges and fingerprints on the screen
- Requires taking eyes off the road to find the right menu
- No tactile feedback like knobs and buttons provide
Capacitive touchscreens use the electrical charge in your finger to register taps and swipes. Resistive touchscreens rely on pressure to activate different areas. Capacitive screens offer better responsiveness and multi-touch capabilities like pinch-to-zoom.
Buttons Pros:
- Tactile feedback helps locate controls without looking
- Classic appearance some users prefer
- Won’t smudge or degrade over time
Buttons Cons:
- Require more space on the panel
- Less customizable interface
- Can’t display as much information
Overall, touchscreens provide a more modern, versatile experience but require focused visual attention. Physical buttons allow eyes-free control for basic functions. Considering your priorities for aesthetics, safety, and ease of use can help determine the best interface.
Audio Quality
A head unit’s audio quality depends on several factors like speaker wattage, pre-amp outputs, and equalizer customization. Look for a head unit that can provide adequate power to drive your speakers properly. According to The Best Car Stereo for Superior Sound Quality, head units that offer 45 watts RMS or more per channel will deliver sufficient power for most factory or aftermarket speaker systems.
Pre-amp outputs allow you to connect external amplifiers for more power. The Pioneer DEH-80PRS is praised by What’s The Best Head Unit For Sound Quality? for its refined pre-amp control over the output signal. Look for RCA pre-outs to connect amplifiers.
Equalizer customization also enhances audio quality. Choose a head unit with a parametric EQ that allows fine tuning of frequency bands. This lets you adjust the sound signature and compensate for any acoustic deficiencies in your car’s interior.
Smartphone Integration
Smartphone integration is one of the most important features to consider when choosing an aftermarket head unit. Today’s drivers want seamless connectivity between their smartphones and infotainment systems. There are a few key ways head units integrate with smartphones:
Bluetooth: Bluetooth allows you to make hands-free calls through your head unit and stream music wirelessly. Ensure the head unit supports the latest Bluetooth version (5.0) for the fastest connection speeds and widest compatibility.
USB Ports: USB ports allow you to charge your smartphone and connect it physically to the head unit. This is required for wired Android Auto and Apple CarPlay connectivity. Look for head units with multiple USB ports for simultaneous connections.
Android Auto and Apple CarPlay: These systems project your smartphone’s apps and interfaces onto the head unit’s touchscreen. This allows you to safely access navigation, music, messaging, and other apps while driving. Most new head units support both Android Auto and Apple CarPlay.
According to analysts, the global automotive smartphone integration market will reach $4.7 billion by 2027, with a CAGR of 12.3% from 2021-2027 (source). Key factors driving growth are consumer demand for better connectivity and advancement in mobile and automotive technologies.
Navigation
When choosing an aftermarket head unit, one key consideration is the navigation capabilities. Many units now come with built-in navigation, while others allow you to mirror navigation apps from your smartphone onto the head unit’s display. Here are some key factors to consider:
Built-in navigation systems can provide real-time traffic updates directly on the unit. This allows you to easily reroute to avoid congestion. App mirroring from your smartphone relies on your phone’s data connection for real-time traffic. Built-in navigation may cover more rural areas as well, while app mirroring is limited to your phone’s mapping app coverage. Some units like the Pioneer AVH-W4500NEX even combine both built-in maps and app mirroring for maximum flexibility.
Many built-in navigation systems now use both GPS and GLONASS satellite systems to pinpoint your location more accurately. GPS alone can sometimes lose signal between tall buildings, while adding GLONASS provides better precision. App mirroring relies solely on your phone’s GPS capabilities.
Overall, built-in navigation systems provide an integrated experience directly on your head unit. But app mirroring offers more flexibility and potential cost savings if you don’t mind relying on your phone. Consider both options when shopping for the best navigation experience in your new head unit.
Entertainment Features
When choosing an aftermarket head unit, the entertainment features are an important consideration. Many head units now come with support for streaming music services and apps, satellite radio, and DVD playback.
One popular feature to look for is support for Pandora, Spotify, and other streaming apps. Many head units allow you to connect your smartphone via Bluetooth or USB and access your favorite apps directly through the head unit’s interface. This allows for easy music streaming without constantly handling your phone. For example, the new Boss Audio Systems head units feature both Android Auto and Apple CarPlay compatibility.
Satellite radio ready head units are also very popular. Major satellite radio providers like SiriusXM let you access commercial-free music, sports, news, and entertainment. Head units with built-in satellite radio tuners make accessing these services very convenient. You simply need an active subscription. Satellite radio services offer a wide selection of stations and programming that isn’t available on regular FM radio.
Many modern head units also support DVD playback on an integrated screen or by outputting video to overhead displays. This allows you to watch movies and videos during long road trips or while parked. Some head units even support Blu-Ray disc playback for high-definition video.
Choosing a head unit with strong entertainment features will help keep you entertained on the road. Streaming music support, satellite radio, and video playback are popular options to consider.
Dash Kit and Wiring
One of the most important things to consider when replacing a factory head unit is that you will need a vehicle-specific dash kit. This dash kit replaces the factory mounting brackets and allows the aftermarket head unit to fit properly. Each vehicle make and model requires a unique dash kit, so you’ll need to look up the specific kit for your car.
You’ll also need a wiring harness adapter to connect the new head unit to your vehicle’s electrical system. The harness adapter converts the factory plug to one that is compatible with your new stereo. Like the dash kit, you’ll need to find the correct wiring harness for your specific vehicle. Using the improper wiring can lead to shorts, electrical problems, or damage to the stereo.
According to this source, one of the biggest pitfalls of DIY car stereo installation is dealing with fit and mounting issues. Having the proper dash kit and wiring harness for your specific vehicle model is crucial for a clean and fully-functional installation.
Installation
You have two main options for installing your new head unit: professional installation or DIY installation. Professional installation from an experienced car audio shop ensures everything is wired up properly and integrated with your vehicle’s systems. However, it comes at an added cost usually between $50-150 depending on the shop and complexity of the install.
DIY installation can save money but requires you to disassemble trim panels and dash components to access the factory head unit. You’ll need to identify and connect wiring harnesses, antennas, and other components on your own. Be prepared for trial and error to get everything working properly.
Dash disassembly steps can vary greatly by vehicle make and model. Consult online tutorials for your specific car. In general, you’ll need to remove trim panels by popping out plastic clips or screws to access the head unit mounting brackets. Take pictures during the disassembly process to help with reassembly.
Common troubleshooting issues include loose wiring connections, incorrect polarity, blown fuses, and integration problems with steering wheel controls or backup cameras. If you run into problems, double-check all connections and wiring colors. Consider taking your vehicle to a professional if you can’t resolve major issues.
Top Brands
Some of the top brands for aftermarket car stereos include Pioneer, Kenwood, Alpine, Sony, and JVC (Source 1). These brands are known for their high-quality build and wide range of models at various price points.
Pioneer is one of the most well-known brands in car audio, offering stereo head units ranging from budget-friendly models around $100 up to high-end receivers over $1000 (Source 2). They are praised for easy smartphone connectivity, customizable EQ settings, and intuitive controls.
Kenwood is another leading brand popular for its clear audio quality and compatibility with steering wheel controls. Their Excelon series is a top choice for audiophiles, while their lower end models still provide great value. Prices range from $50 for basic radios to $600 for premium touchscreen units.
Alpine specializes in high-end systems with features like HD Radio, Bluetooth, navigation, and satellite radio built-in. Their receivers provide excellent sound customization and connectivity. Expect to spend $300+ for Alpine stereos with advanced capabilities.
Sony and JVC are also reliable brands with a wide selection of head units at affordable prices. Sony is known for bass-heavy sound, while JVC aims to deliver clean, balanced audio. Both work well for upgrading basic factory stereos on a budget under $200.