My dealer is having problems with the Aux in mod he has installed for me.
The Aux in option is selected on the entertainment screen but no sound from any source he has tried.
They have pulled everything out rechecked all the connections, they say that they will have to email BMW in Germany for help so I thought someone here may have some experience that will help.

Non Nav 530i 2004 registered

 

I happened to me also. There's a thread somewhere on this problem but I couldn't locate it. Basically the installation instructions for Aux Input are/were incorrect and a couple of wires need to be reversed. I gave my installer the correction and there was no problem getting it sorted.

 

I had the same problem too, although with mine it messed up a lot of stuff. My whole iDrive went completely retarded, it would shut off, turn on, randomly do some functions but not do others, no sound from AUX in, etc, etc.

Bottomline, I took it in, and it turned out that they had plugged it in wrong, it took them 30 minutes to fix and now it works fine. So I'm with nmc in thinking they got the wrong instructions too.

Now that I think about it, I'm starting to think that the initial mess up is what's causing all my other electrical problems too (High Battery Drain, SOS Call System Malfunction). Anyone else think they totally f*ed up my entire electrical system by doing this?

 

i have the aux-in with the instruction...and i have noticed the wires installed in a diffrent way than the instructinos..i thought that is a region thing each has diffrent color wires...but not sure...so perhaps you have the same situation...
ill have it installed next week i hope that i have no problems..