After installing a similar Chinese android car radio/navigation/media player in my EG Civic to supplement a Hondash Bluetooth OBD ECU code-reader, I decided I NEEDED to replace the ugly and inappropriate 2005 era CD player fitted to my '89 Civic hatchback.

EG Civic

Displaying Hondash Bluetooth OBD ECU code-reader

2005 CD player

Very happy with that I bought another.
I wanted the unit to fit within the original single-DIN radio aperture & wasn't too concerned with sound quality but thought GPS navigation worth including with a screen and memory large enough to use downloaded maps without recourse to a mobile phone for support.
Although technically fitting within the DIN standard space the display was slightly oversized, complicating fitment, the functional areas of the display still fitted within the Civics original radio aperture, arguably giving a much better end result if fitted properly & not left hanging out messily
Be warned however if buying cheaply as I was, that specifications can vary wildly for seemingly identical looking units. Some not even featuring touchscreens, and many not mentioning ROM & RAM memory capacity or basic operating speeds which could make them uselessly slow to use or change between functions.
Memory, WiFi, GPS, Bluetooth and cameras may be optional extras.
I would have been happy with 2gb ROM but saw 4 on sale. The recent addition of a rear USB port also much appreciated. I got a camera as well for use upon another car but figured the functional rear windows of the Civic work much better.

Android unit

 

Civic radio surround removed.
Surrounding trim removed
Showing screw fastenings for Honda's original mounting bezel on each side, with another at the rear of the unit (front of car), accessed from underneath.

Thankfully the first person to replace the original radio had NOT butchered the cars wiring like so many of my other cars, so I could solder the new radios connection plug wires to a Honda Radio plug.

Radio Plug

Honda Radio wiring.


Next task was to mount the unit with Honda's original mounting bezel and standard DIN metal carrier being inappropriate for the display size, with my aim of mounting it behind the dash trim rather than on top. I also wanted to mount it slightly off-centre, as I did upon the EG, to allow a slim, deep pocket alongside to hold pens & USB cables.

A thin steel strap was bent to provide a right-side mounting point which would place the unit at an appropriate depth to fit behind Honda's surrounding trim and screwed to the side of the radio unit.
And using some 3mm Acrylic sheet, a box was glued together for the left side, incorporating mounting tabs to suit Honda's left and rear mounting points, once it was also screwed to the radio assembly with counter-sunk M5 screws.



Completed assembly for mounting to Civic.

Self-adhesive flocked 'velvet' was applied to the inside of the storage box and a thin strip of black plastic cut from a folder to provide a pull-out 'draw' to aid extraction of small items from such a deep storage pocket.


And mounted.

New Android radio

Obviously a vast visual improvement upon the previous aftermarket radio/CD player!

 

Appropriate 3rd generation Civic logo saved to the unit as it's booting image, and as it's background wallpaper.

Logo
The new unit offered a variety of display options but none of them was simple & space enough for my liking, so the rather basic NOVA app was installed to customise the home screen display with smaller function icons to better show the CIVIC background wallpaper and a time/date widget added.


NOVA customised home display

 

Honda hadn't fitted rear speakers to my car, though no doubt they were available upon more expensive models or as dealer accessories, but I wanted some now.
Factory installed Speaker wires were found taped to the rear lamp wiring plugs.

Rear speaker wires.
But I still needed to mount speakers and didn't want to hack about or drill holes in my original interior trims, so some more 3mm Acrylic sheet and scrap wood was cut, drilled, carved and sanded to support them in the factory recesses on either side of the rear luggage cover.

Wood & Acrylic scrap

3d printer would have been nice to provide something more professional, but it was painted black, the speakers mounted & assemblies placed in the car.

Rear speaker mounting pods.
Speaker wiring extensions made up and routed through seat-belt slots to Honda's speaker wiring plugs.
Obviously optimal acoustics weren't my highest priority.
Just need to make up some sort of speaker covers now...

 

So these modern mechless head units aren't even attempting to match the DIN standard size anymore?

Is it considered another standard? Or just whatever. Don't even offer a bezel?

 

Didn't most original interpretations go out the window ~2000 as radios became more integrated into the dash & bezels become part of the trim & car specific.?
My newest car was released in 1993.

DIN standard obviously allows some interpretation with the main unit conforming properly.... But the display...

Standard sized are available, often with gimmicky fold-out screens (that assume you don't have anything important above). I've seen examples with screens which could be bolted on in various positions which was a good idea... if the screen size suited.
The ED/EF trim opening actually allowed for bigger bezels than the EG which was good.. EG was a VERY tight fit & required removal of its mounting edge to do it the way I did & not leave it hanging out.

Lazy test fit.

And in this case the slightly oversized screen worked out perfectly to eliminate messy extra bezels for a much cleaner end result.