Download Version 1.6+ of the firmware (in older versions it is located elsewhere in the file)
In the \bin\MtkSettings.s look for these 2 lines
unit="162*1131*3*Car Info Pop-Up";
unit="163*1134*3*Driver Position";
And simply add this line:
unit="141*-1*3*Speed volume";
Save put on USB stick and flash the radio.
Unfortunately, Zenec tells me that this unit doesn't have such function and that the volume isn't speed dependent which it certainly is!
I showed them this video and they still claim it is nonexistent. Well I tell you If I didn't find out this function and how to disable it I would have poured gasoline over this Radio and set it on fire!
