When choosing a vehicle, one thing you shouldn’t overlook is the car audio system. There are two commonly used systems: Single DIN and Double DIN head units.
Both have their own advantages and disadvantages. However, in this article, we’ll focus on Single DIN head units.
This audio system is ideal for those who value practicality, prefer a classic style, and have a compact dashboard space. Before making a choice, it’s best to understand the factors to consider and the regulations governing this device as a wireless audio system.
Advantages of Single DIN Head Units
1. Essential Connectivity Features
Connectivity is an important feature to consider in a car audio system. With this feature, drivers can easily connect their smartphones. This allows them to wirelessly play music from their phone’s library and make hands-free calls.
Single DIN head units come equipped with these features. With their compact design, they offer a full range of basic audio connectivity options. Standard configurations include Bluetooth audio streaming, a high-speed USB port, an AUX input, and a digital radio tuner.
2. Universal Dashboard Compatibility
As mentioned earlier, Single DIN head units feature a compact design. This device has an international standard size of approximately 2 x 7 inches (5 x 18 cm).
Thanks to its compact size, this unit can be seamlessly installed in various types of vehicles. It’s often found in cars with limited dashboard space, such as older models or utility trucks.
3. An Economical and Cost-Effective Choice
Often, you don’t need to spend a lot to enjoy in-car entertainment. Single DIN head units are more affordable while still offering sufficient functionality.
This is because the device doesn’t require complex touchscreen assemblies or heavy-duty graphics processing hardware. Even at an economical price, you still get high-quality audio.
4. Tactile Controls and Reduced Driver Distraction
When driving, it’s essential to stay focused on the road. Navigating through multiple layers of touchscreen menus can often be distracting.
The Single DIN head unit uses physical controls for volume adjustment, song selection, and radio tuning. This tactile interface allows drivers to adjust settings intuitively with a simple touch.
Disadvantages of Single DIN Head Units
1. Simplified Display Interface
Amid the onslaught of modern technology, choosing a Single DIN head unit might feel outdated. This is because these devices do indeed have a simple display interface.
These devices are generally equipped with only a single-line or multi-line LED/LCD text display. This certainly stands in stark contrast to most head units on the market today, which feature modern interior designs or rich visual feedback.
2. Screen Size and Information Limitations
The compact screen size means that the information displayed by a Single DIN head unit is also limited. This can make it difficult for some people to see the display while driving.
Reading detailed track metadata, folder structures, or caller ID details often requires a large screen. That way, the information can be seen clearly and easily without significant difficulty.
3. Lack of Built-in Integrated Smart Media Features
Single DIN head units are not designed to directly support high-end multimedia applications. Therefore, you cannot use built-in GPS mapping, a rearview camera display, Apple CarPlay, or Android Auto in the car’s system.
Some specific Single DIN models are equipped with a motorized “flip-out” mechanism. However, this mechanical movement of the screen has the potential to cause hardware wear and tear over time.
Key Considerations Before Buying
In addition to the advantages and disadvantages of Single DIN head units, there are other factors to consider. Here are three technical factors to keep in mind:
- Dashboard Slot Depth and Connecting Cables: Beyond the specified dimensions, you should ensure there is sufficient depth inside the dashboard slot. This is necessary to accommodate the rear connecting cables, RCA pre-amp outputs, and the antenna adapter.
- Audio and Pre-amp Output Power: Check the built-in amplifier’s rating (typically 50 W x 4 peak power). You may want to look for dedicated RCA pre-amp outputs if you plan to connect to an external amplifier or a high-powered subwoofer.
- Steering Wheel Control Integration: This is intended for vehicles equipped with built-in audio controls on the steering wheel. The Single DIN head unit must support a third-party steering wheel control (SWC) adapter interface.
Telecommunications Standards for In-Vehicle Wireless Devices
This is our technical perspective, based on our experience working with various head unit manufacturers on type approval certification. Single DIN head units feature wireless connectivity such as Bluetooth 5.0.
In practice, this connectivity requires operation on the 2.4 GHz radio frequency band. Therefore, certification is required for these devices before they can be integrated into a vehicle’s system.
These tests and certifications aim to evaluate transmitter power, frequency stability, and spurious emissions. Moreover, a single vehicle may contain more than one device operating on radio frequencies, such as immobilizers, Tire Pressure Monitoring Systems (TPMS), and so on.
Obtaining a type approval certificate means that telecommunications devices marketed and used in a country are safe and will not experience interference during operation. It is important to note that each country has its own standards in this regard.
