How to turn Android tablet into car head unit?

Converting an Android tablet into a car head unit can provide a powerful and customizable infotainment system for your vehicle. With a tablet’s large touchscreen, apps, and connectivity features, you can enhance music listening, navigation, hands-free calling, and more. Some key benefits of this DIY project include:

– Improved sound quality and audio options by connecting the tablet to your car’s speaker system. The tablet allows you to access high-resolution streaming audio and digital music files for a premium listening experience compared to factory stereo systems. (https://sorenacaraudio.com/exploring-the-latest-trends-in-car-audio-technology/)

Choosing a Tablet

When selecting an Android tablet to use as a car head unit, you’ll want to consider the operating system version, screen size and resolution, and hardware specifications.

Newer versions of Android (8.0 Oreo and above) tend to work best for in-car use, offering better optimization and features like split screen. Aim for at least Android 8.0 if possible. According to the Wirecutter’s review, the Google Pixel Tablet runs a clean, up-to-date version of Android and is their top overall pick.

7-10 inch tablets offer a good balance of portability and screen real estate for use in a car. 1280×800 or 1920×1200 resolutions provide sharp visuals. IPS or OLED panels offer wider viewing angles versus standard LCD.

For hardware, look for at least 3 GB RAM, an octa-core processor, 32 GB storage, WiFi 5, and USB-C charging. Built-in GPS is also nice for navigation apps. The Amazon Fire HD 8 provides solid performance at a budget-friendly price point according to YouTube reviews.

Tablet Mounting

When mounting an Android tablet in a car, there are several options for securing the tablet in place. Some of the most popular solutions include:

Dash kits – Pre-made dash kits allow you to integrate the tablet into the vehicle’s dashboard, similar to an OEM head unit. Dash kits are specifically designed for certain vehicles and tablet models for a custom factory look. Companies like Metra make dash kits for many popular tablets and vehicles (https://iboltmounts.com/all-mounts/tablet-mounts).

Custom mounts – For a more adjustable and removable solution, custom tablet mounts from companies like RAM Mounts or iBolt can secure a tablet just about anywhere in a vehicle. These mounts use strong suction cups, clamps, or bolts to securely attach a tablet mount to the vehicle interior. The tablet can then be placed in a holder attached to the mount arm for quick removal when needed (https://www.rammount.com/tablet-mounts).

Location – Important factors when determining tablet location include driver visibility, access to controls, and minimizing driver distraction. Common mounting locations are on top of the dash, attached to pillars or headrests, or integrated into the center console area. Consider wiring and ventilation needs when selecting a mounting location.

Power Connection

One of the most important considerations is how to power your tablet in the vehicle. There are a few main options for connecting power: Lenovo Tablet Charging Tips

Hardwiring directly to the fuse box or vehicle battery is the most robust option and will ensure consistent charging. This requires wiring expertise but provides a clean, integrated power source. Make sure to use an appropriate voltage regulator and fuse when hardwiring.

Connecting to the cigarette lighter or accessory port via a USB adapter is simpler but some ports may not provide enough sustained power for larger tablets. Using a high-quality adapter with sufficient wattage is recommended.

Tapping into an existing USB port can work for smaller tablets and provides a tidy installation. However, built-in USB ports can be underpowered and may turn off with the ignition.

The best approach depends on your vehicle, tablet power needs, and installation complexity. Prioritize a stable power supply that can charge during use and avoid tapping ports prone to turning off.

Audio Integration

One of the most important steps when installing an aftermarket tablet as a head unit is properly integrating the audio system. This involves connecting the wiring harness, amplifying the speakers, and retaining steering wheel controls.

The factory wiring harness will need to be connected to the tablet to provide it with power, ground, and speaker outputs. An adaptor harness is usually required to convert the factory plug into one that is compatible with the tablet. Ensure all wire colors and functions match up properly before connecting everything.

Most tablets do not provide enough amplification to properly drive speakers, especially for louder listening. Adding an outboard amplifier is highly recommended to provide clean and distortion-free sound. A 4-channel amp can power front and rear speakers, while a mono subwoofer amp enhances bass.

To retain vital steering wheel controls for volume, track skipping, etc., you will need a separate interface module. This intercepts signals from the steering wheel and converts them into commands the tablet can understand over USB or wired connection. Retaining these controls greatly improves convenience and safety.

Carefully wiring thestereo installation according to instructions will prevent many common problems. However, getting professional help may be necessary to properly integrate the audio system.[1] Aftermarket stereo issues like poor sound quality or low volume can often be traced back to improper connections.[2]

Video Output

Getting video output from your Android tablet to your car’s head unit display is crucial for displaying apps, maps, and rear cameras. There are a few main options for video connectivity:

HDMI is the highest quality and most universal video output. Most newer Android tablets have HDMI out capability. You’ll need an HDMI cable long enough to run from the tablet behind the dash to the head unit display. Make sure to get an automotive-grade HDMI cable that is designed for long runs and can withstand heat and vibration in a car interior. Connect the HDMI cable to the tablet’s HDMI port and route it neatly behind the dash to the display.

MHL (Mobile High Definition Link) output allows you to connect your Android device to the head unit display using a special MHL cable. This converts the digital signal to HDMI so you can view the tablet screen. MHL cables are inexpensive but you need compatible ports on both tablet and display. Not all devices support MHL so check compatibility first.

There are also wired solutions like the Joying Android Auto head units that allow you to connect the tablet directly using a proprietary cable and harness. This simplifies wiring and provides charging and touchscreen control. But it locks you into a specific brand of head unit.

For the cleanest install, plan cable routing carefully and use wire looms, concealers and cable clips to secure cables neatly behind the dash. Avoid running cables where they can be pinched or interfere with vehicle operation.

Touchscreen Operation

Operating the touchscreen while driving can be dangerous and illegal in many areas. To enable touch control only when parked or stopped, use an app like AutoTouch which can automatically disable the screen based on driving speed or use profiles to restrict touch input.

Alternative control options include connecting a wireless mouse or touchpad to manipulate the screen by mouse cursor. Bluetooth options like the Jelly Comb Touchpad provide easy cursor control. An Android app like Tablet Remote Control can also allow you to control the tablet from another Android device.

For full touchscreen functionality without directly touching the screen, consider a wireless projection system like Miracast to mirror your tablet’s display to a secondary touchscreen device placed in easy reach.

Apps and Customization

When using an Android tablet as a car head unit, installing the right apps, launchers, themes, and icon packs can greatly improve the experience. Some recommended apps include:

• Google Maps – essential navigation app with Android Auto support
• Google Play Books – for audiobooks and podcasts
• Pandora – streaming music and podcasts
• doubleTwist – media player with Android Auto support

Using a custom launcher like Car Launcher can simplify the interface for driving. Theming apps like ThemeSamurai provide car-focused icon packs and visual styles.

With some customization, an Android tablet can provide a polished in-car interface focused on driving apps and music.

Connecting Devices

There are several ways to connect your Android tablet to your car’s systems for audio, video, and control functions. Here are some of the most common connection methods:

Bluetooth can be used to wirelessly connect your tablet to your car’s audio system, allowing you to stream music, podcasts, audiobooks and other audio from apps on your tablet. Most newer cars have Bluetooth built-in. Make sure to pair your tablet to your car’s audio system.

WiFi hotspot tethering from your smartphone is a great way to provide internet connectivity to your Android tablet. This allows apps like Android Auto and navigation programs to function properly. Enable the hotspot on your phone and connect your tablet to it. Some cars even have built-in WiFi hotspots.

USB can be used to both power your tablet and integrate it with your car’s infotainment system. There are USB ports made specifically for car integration. Connect your tablet with a USB cable to enable Android Auto or Apple CarPlay. This often provides the deepest level of integration.

Aux input allows you to connect your tablet’s headphone jack to your car’s aux port. This will let you play tablet audio through your car’s speaker system. Just make sure your car stereo supports aux input. The connection is analog so sound quality may not be as good as digital options.

Future Upgrades

As technology continues to advance, there will likely be opportunities to upgrade your Android tablet car integration system. Some potential upgrades include:

Larger display: As tablet screens get bigger and higher resolution displays become more affordable, you may want to upgrade to a larger tablet for a more immersive in-car display. Many tablets now offer displays in the 10-inch to 12-inch range. Just make sure it will still fit in your custom mounting bracket. Some examples are the Samsung Galaxy Tab S7+ with a 12.4″ Super AMOLED display or the 11″ LCD on the Microsoft Surface Go 2.[The Coolest Car Gadgets to Soup Up Your Current Ride](https://www.pcmag.com/picks/34-ways-to-soup-up-your-current-car-with-tech)

Added peripherals: You may want to add accessories over time like an external GPS puck for navigation, a rear camera for backing up safety, or integrate climate controls if not built into the main tablet. Expanding to include more peripherals can add convenience and functionality.

Performance boost: As newer tablets come out with faster processors, higher RAM, and expanded storage, you may want to upgrade for snappier performance. This would help with multitasking, quick app launching, and using demanding apps.

Upgrading key components periodically can help keep your Android tablet car computer system feeling fresh and responsive. Just make sure to plan integration carefully when swapping out core pieces like the tablet display.