The Double DIN android head unit is a classic size. The DIN refers to the size and double, is well, two single DIN sizes one on top of the other.
Android Auto is a system to allow an android phone to ‘stream’ its screen onto an in-car display, typically an android headunit, sometimes a double DIN android headunit.
The Double DIN stereo can be described as a classic size. All the older model cars had either a space for an single DIN and some even had space for a Double DIN stereo. There may just be an empty space for a stereo as the car came out of the factory. This gave the first purchaser the choice of stereo to fit, if at all. Having a Double DIN space meant that a single (effectively the space for two single din radios) or a Double DIN could be fitted. Some would have a single DIN car stereo and a single DIN CD mutlichanger to take the space of a Double DIN.
Android Auto is great if you have an android phone. The android auto will live stream the android display to your in car screen. This means you phone can stay in your pocket or different users of the car can each connect their phones as they drive. This is a huge advantage if there are multiple possible drivers as each can android auto their own phone to use their own mapping software preferences. It just like your own phone, but bigger and in the view of the driver.
Android Auto and Double DIN
If you are only interested in the android auto for the Double DIN then getting an android headunit of any great cost won’t be necessary. The phone will do all the heavy lifting, it has the processor, it has the RAM, it has the apps and 4G. The Double DIN just needs to be a screen and run the android auto.
There are may well priced android auto Double DIN units available. They all need a degree of installation and most of the level of work would depend if it is a custom fit or universal fit. Typically all the Double DIN car players are universal fitting. This is due to the nature of car manufacturers over the years to phase out universal car radio fitting and only build in custom units.
You can find the Double DIN car players with Android Auto options on Aliexpress. A lower end unit will suffice but the key is to specify the Android Auto option when choosing a Double DIN. Adding the option after purchase may work, but there can be compatibility issues. Buy the Double DIN and add the optional Android Auto to the basket in the same transaction.