I replaced the original head unit on my 2019 Honda Jazz EX Navi with a Teyes CC3L bought from aliexpress, and it's been a great upgrade.
The installation was easy, it's plug-and-play with the included harness, so no wire cutting was needed. Honestly, taking out the factory head unit was the hardest part. I followed the removal guide from HondaFit4Adventure's video, which was super helpful:
(his other content is great).
The unit itself is fantastic. I finally have CarPlay, and I was really happy to see my OEM reverse camera works perfectly with it.
Note for Steering Wheel Controls: They don't work out of the box for me. I had to go into the canbus settings and select the "Raise(RZC) Honda Fit 2021" profile to get them working.