Vllt hilff dir dieses Video, ungefähr ab der Mitte (5:12min) wird der Ausbau gezeigt.
						
				Retrofitting a Professional Head Unit with USB and Bluetooth on my BMW e93!
				
		Hello!Today I am showing you how to retrofit a Professional Head Unit with buit-in USB and Bluetooth without loosing features like Aux-In, PDC (parking senso...
				m.youtube.com