Before introducing to solve the problem, first understand what specific models of Mercedes NTG5 are available:

Mercedes-Benz systems between 2014-2018 include NTG5.0/5.1/5.2, these 3 systems can be installed using the same Koason Android navigator or screen changer with the same wires and base, you just need to select the corresponding CAN protocol and model display inside the settings.

NTG5 system models include C-Class, GLC, A-Class, CLA, GLA, E-Class, CLS, B-Class, V-Class, SLK, GLE, GLS. like Mercedes-Benz A-Class, GLA's panel is very much like NTG4.5, so it is generally more accurate to confirm the system through the original CD host panel and the radio's menu.

How to identify the version of Mercedes-Benz NTG system：Click for details

It should be noted that the Mercedes-Benz C-Class, GLC, V-Class after 2019 is already NTG5.5/6.0 system, but some individual models of the original menu is very similar to the NTG5.0/5.2, to distinguish between these models of the system can also be confirmed by the original panel, the NTG5.0/5.2 main body panel has a CD disk port, while the NTG5.5/6.0 car does not have a CD disk port, The following picture shows.

Mercedes-Benz NTG5 models due to the original car does not have AUX input, so after retrofitting Android navigator, the sound can only be used over the USB audio adapter into the original car, which in the middle of the conversion of a variety of ways easily caused by the phenomenon of delay. Because Mercedes-Benz NTG5 original host of a variety of general Harman, Mitsubishi and other hosts do not have this problem, Panasonic brand hosts are more obvious, mainly in the playback of video when the sound will probably have a delay of about 2-3 seconds, this is the original host of certain brands led to the addition of screen changer belongs to the normal situation.

But if you want to avoid the problem of sound and picture quality is not synchronized, the solution is to install Koason brand DSP amplifier DSP100, do not use the USB audio adapter, add DSP100 amplifier can be a perfect solution to the problem of latency, Koason DSP100 amplifier to be installed with a special cable.

The following describes the wiring method of DSP100 amplifier and related settings.

1.The following is the NTG 5.0/5.1/5.2 wiring diagram:

2.Android factory mode Amplifier selection: Aftermarket Amplifler

Routes：Settings-Factory(Key 2018)-Function-Amplifler Selection-Aftermarket Amplifler

3. After the settings are completed, press the reset button on the side of the screen panel to restart the machine.

Note:
(1) Ugode DSP amplifier box model number is: DSP100, install NTG5.0/5.1/5.2 can use the same cable, 5.5/6.0 car can also be installed, with a different line on it.
(2) DSP100 is only suitable for installing ordinary cars without Sound of Burmester amplifier, cars with Sound of Burmester have to use a different kind of amplifier and different cables. You can distinguish the car with or without Sound of Burmester amplifier through the door speaker cover, the following is the car with Sound of Burmester:

4.NTG5 most of the car also comes with fiber optic, such as encountered with fiber optic car also jumper fiber optic, otherwise it will lead to the original car and Android are no sound.Click for details

If there is no optical fiber, please ignore.