bmw E65 entertainment devices
There are 3 devices located in the left corner of my trunk. I own a 2008 740i. I identified 2 of them, Bluetooth and amplifier. The 3rd has 4 wires connected to it, 2 of which are optical. My questions are, how does that device get power? What is it, and what does it do?
Ist dies eine gute Frage?