Hoping someone can help,
I need to be able to mute my CCC at will, in my E71.
I attach some posts I found online ...
https://www.e60-forum.de/forum/index...353#post411353
https://5series.net/forums/diy-do-yo...e2/#post968671
...and a diagram of my FAKRA plug at the back of my CCC head unit.
This afternoon, I measured the voltage of this pin at 4.85v (pin #10 in the X13812 connector).
I then connected the pin to the chassis but no muting occurred.
I then connected the pin to the center of my cigarette lighter but no muting occurred either.
Anyone knows how to get this working?
PS.
A. My OEM FAKRA plug does not have a wire going to this pin (CCC->PIN#10->OEM FAKRA(X13812)->NO WIRE @ pin#10!). To connect to this pin I used the harness of an Android head unit which has this wire in place (CCC->PIN#10->NEW FAKRA(X13812)->wire->OEM FAKRA(X13812)->NO WIRE @ pin#10!).
B. Is it possible that the pin has to connect via FAKRA to the amp (CCC->PIN#10->FAKRA(X13812)->wire->SOME_DEVICE)? If so, then grounding only the pin itself will amount to nothing. If so, then where should this pin connect to, before I ground it?
C. My E71 has a factory phone cradle in the armrest compartment. I conclude that this pin is not related to the phone cradle since no wire connects to the pin.