This issue will likely be shared by W211 and W203 Users.
My Car has been connected with the ISO cable and the rear subwoofer has no dedicated connector, it is connected together with the other 6 speakers in the car (LS rear right LS front right LS front left LS rear left)
Now the issue is, that my "subwoofer" plays full range music, even though it is supposed to only play bass. The orginal mercedes radio probably handled this with the EQ to seperate the subwoofer out of the full range and only send lows back there. Does anyone have an Idea how i can get DUDU to use my back speaker only as sub? I figure this issue will be very hard to understandy for many, because it is a very specific case. I have 6 Speakers and 1 in the trunk that acts as the "sub". DTS 5.1 couldnt get the seperation.
The subwoofer basicly has no dedicated pin and is supposed to only produce bass, but its acting as full range.
I hope someone here can help, as this issue is kind of a deal breaker for me.