[von Schultz]

Hi there!

Here's the problem. My E90 LCI doesn't have any Navigation so almost three years ago i've upgraded the Apple iPhone station (http://www.baum-bmwshop24.de/Infotai...-iPhone-4.html) + Alpine Hi-Fi upgrade.

The mentioned iPhone station uses AUX IN and everything works fine. The same goes for the USB port.

Neverhtless, i've never actually used the physical AUX IN input placed under the armrest. As i've upgraded to iPhone 6 + Y cable, i've started using the mentioned AUX IN and noticed that there are no vocal lines on songs coming out through the right side speakers. It seems that the certain frequencies are completely cut out.

I've tried several more options with and without the Y cable, but the problem persists.

Do you guys have any idea? Maybe someone messed up the installation when the iPhone station was installed three years ago?

Thanks!