Hello,

divinetong

I own a Volvo S40 2006 with Premium Sound System. After installing DuDUAUTO 7, the front speakers have no bass, the speaker layout is completely messed up. The front speaker and rear speaker are reversed and the left and right speaker are reverse. Any ideas is to why this is happening? I also tried with the ISO adapter and the front speakers sounded correct but the rear speakers had no bass. The speaker layout was correct as expected. Any ideas?

dudu-lai

divinetong As far as I know, the Volvo S40 retains the original CD main unit during installation.
The DUDU unit is not connected to the car speakers but to the original CD main unit via the AUX input.
Did you connect AUX to the front left/front right audio outputs of the DUDU?
With the DUDU, the audio is only distinguishable between left and right, not front and rear!