Fix Android Screen No Sound for Mercedes with NTG4.5/4.7 system
12.21.2023 | Ugode-de |
  • If your car has optic fiber(Ignore if no optic fiber), need to relocate it to android harnes  Click for details

 

  • Some Mercedes models require connection to the AUX port to output sound

 

  • Aux has two switching modes, manual and automatic:

Note: if your car is NTG4.5 system and has no AUX options in NTG menu, need to activate Aux inside factory settings first, the route is : Factory Settings-Vehicle-AUX Activate, after restart, you will see AUX options inside NTG menu.

https://youtu.be/k6sPVUkM9F0  --- Video to show how to activate Aux

https://youtu.be/UwSd1sqx5P4 ---- Video for Benz to show how to set AUX Switching mode to “Manual/ automatic” for sound.

 

Automatic modes( different Android versions, different setup Routes.):

setup Routes 1:

Setting->System->AUX setting->Check "Automatically switch AUX" (Default is checked)

②Go to the NTG menu, check Position of "Audio" and "AUX", in the example below, the "Audio" and "AUX" positions are "2" and "5", so set AUX Position as "2" and "5" ( A few cars need to add 1 to the actual value, which is "3" and "6"), Route: Setting->System->AUX setting

setup Routes 2:

Setting->Factory(code"2018")->Vehicle->AUX Switching modes->select Automatic (Default is checked).

Go to the NTG menu, check Position of "Audio" and "AUX", in the example below, the "Audio" and "AUX" positions are "2" and "5" ( A few cars need to add 1 to the actual value, which is "3" and "6") , so set AUX Position as "2" and "5" .Route: Setting-->system >AUX Position

Manual modes( different Android versions, different setup Routes):

setup Routes 1:

Setting->System->AUX setting->Uncheck "Automatically switch AUX", and set AUX Position as "0" and "0", then go to NTG menu and Choose “Audio-AUX”, touch screen to android system, sound out.

setup Routes 2:

Setting->Factory(code"2018")->Vehicle->AUX Switching modes->select Manual, and set AUX Position as "0" and "0" (Route: Setting->system->AUX Position), then go to NTG menu and Choose “Audio-AUX”, touch screen to android system, sound out.

 

  • Check if the "CAN Protocol" chosen is "NTG4.5/4.7"

 

  • Checking the volume value of the Android system

 

NOTE:

        1.Some models not support Automatically switch AUX and need to be set to manual mode.

2. "AUX Switching scheme" is Amplifier selection, "Scheme A" is for " Alpine ", "Scheme H" is for "Harman ", "Customize" is for other brand, Choose it according to head unit brand