Kenwood, Metra and no sound

[stranaz]

Hello everybody,

today I put my Kenwood DNX 9960 into my 2005 X5 and everything worked,
exept the volume.
Regardless if I use the radio, the cd or the navigation, no sound
I ckecked the connection with the Metra 70-9003 Harness a least 3 times and everything is as it should be.
Does anybody have a clou

[stranaz]

I need to ad, that my car has a radio and the cd player as two different unit's.
With the harness that I have, I deal only with the big black plug and the little white one from the cd player stays untouched.
Could there be the problem?

[wullaby]

I believe that the factory amp is what powers your speakers and thus the sound. The radio and cd player factory do not have built in amplifiers. Therefore I do not think installing a new radio without further work such as adding an amplifier or running wires from the radio to each speaker will do anything for you...

[stranaz]

I just learned again, that not everything written is also right.
The manuel stated clearly, that the wire for the motorized antenna was not needed but in my case, it was also to power the amplifier.
Just because, I connected it and it worked.