The Honda 39102-T9A-T8XX-M1 display audio is the stock head unit of Honda City 2017 Facelift 1.5L E/V variants.
It is able to play 4 types of multimedia files in a USB thumb drive: MP3 music, WMA music, JPEG photo, and MP4 video.
When the car parking handbrake is engaged, the video will display on the screen, otherwise, the video will become a blue screen while the music in the MP4 continue playing. This is a safety feature so that the driver will focus on driving instead of watching video on the screen. If you want to bypass this safety feature, you can search for a compatible "bypass cable" for this head unit and install it.
In order for any video to be playable in this Honda 39102-T9A-T8XX-M1 head unit, you need to convert it into MP4 format with the following custom settings:
- Frame size: 640 x 480
- Adjustment: Original
- Video codec: MPEG4
- Frame rate: 15 fps
- Bitrate type: Auto
- Audio codec: MP3
- Channels: Stereo
- Sample rate: 48000 Hz
- Audio Bitrate: 320 Kbps
Conversion can be done using a free software called Freemake Video Converter.
Although the car audio manual claimed that it is able to play video in H.264 Base Line Profile format, I have not succeed to make it work with any H.264 video.
The car audio manual also claimed that it is able to support video frame rate up to 30 fps, but if you set the fps higher than 15, the video might not be playing smoothly on the screen.
As the car audio manual has stated that it supports VGA size video only, the frame size is best to be 640x480. If you set it higher than that, the video will be totally unplayable with the "not supported resolution type" error.
Luckily, this head unit is capable to play MP3 in pretty high sample rate and bitrate. Its music playing capability is quite OK, particularly with the 8 speakers in the V variant, despite its video playing capability is really primitive.