please elaborate on this setup

 

https://5series.net/forums/bluetooth...eaming-139872/
Plus various other like options, just try google

 

You can follow the suggestion by cmyachtie and just make a couple changes. I purchased a bluetooth module like the one below.

I had previously upgraded to the LCI USB/AUX located in the center console and I didn't want to change that.

I simply took the bluetooth module and installed it behind the radio. (Made the mistake of hooking it to constant power so I could listen to radio/bluetooth without the key. Bluetooth didn't like that, it needs to cycle on/off, otherwise you can't connect to it.)
Next step was coding to make Aux 2 functional. Everyone knows that you can add AUX if you didn't have it, but you can add multiple AUX'S.

As you can see, I have 2 Aux inputs. I also have CD, CD Changer, and can run the DVD player from the 7series on the Most network (sold that player). While I was in the center console I pulled out that phone holder/storage tray. It was to small for any of my phones. . . . . .

More space, much better than before.

 

@Dj530 You can add more AUX's to the iDrive with what process?

 

I used NCS EXPERT to make the changes. I will take a look tomorrow for the items you need to change. I may even have backed up the changes, so I could forward you the file.

 

Okay, once you load NCS EXPERT, open the module list and click on CAPPL. Open it with NCS DUMMY. Search for MM_DEVICE - EXTERNAL MULTIMEDIA DEVICE and change it to Aktiv.

In the above picture you can see the AUX input is AKtiv along with the MM_DEVICE option. The Aux 2 is interfaced on the rear or the head unit.