Hi all,
I try to install the Aux cable myself using common 3-wire stereo cable instead of genuine BMW aux cable, however after i have the wires connected then press the mode button the Aux mode never display not to say Aux source music (i use a NAND flash type Mp3) been played. I also don't think there is any magic in the Aux cable, so i wonder this installation should be done in the authorized store where they will set-up the headunit. Seeing this thread can anyone confirm that before you have Aux-in installed the "mode" key can switch from Radio-CD-CDC and Aux? And they work the same when you have your aux-source power off?
hanks very much! Btw, anyone know how the 3 corlor of the cable match to Aux-L, Aux-R and Ground?

Thanks very much!