The sequel
After some hesitation due to my previous experience, I decided to buy a new product (used, for once).
Result: it works fine so I can share my experience after a few days of operation:
- Its very good, probably one of the best for this kind of device, with excellent stereo imaging, the sound just a little lower than normal, but still significantly better than the others I've tried before
- Tiny and unreadable screen from the driver's seat (1cm x 2cm)
- The steering wheel is unusable, it does not work when attached at the wheel: design flaw because the infrared diodes can not be in the direction of the camera in this case
- The cigarette lighter fleet a bit in its housing
- No fast forward, but I think it is not possible for this type of device
- Finally, small inconvenience, the device works only with the contact operated vehicle since cigarette lighter depends on it, so we can not in principle be used to stop the vehicle
I have tried that mp3 music playback, not for phone
In summary: I chose this unit to its excellent audio quality, which is rare in this class of devices, the rest can do better