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raykay · 12th May 2019, 20:34

The Brown connector is for the speakers, which use all 8. Pins 4 & 7 in the BMW connector (Phone mute & K-Bus) are not in the ISO connector. It should be pin 1 in the Black ISO connector that is empty (phone mute input), pins 2 & 3 are for the steering wheel controls. The K-Bus is not part of the ISO connectors, in the O.E. wiring, it is via the CD changer connector.

12th May 2019, 20:34	#8
raykay I really should get out more....... Now Other Manufacturer Join Date: Nov 2006 Location: Co. Kerry Posts: 2,786 Thanks: 16 Thanked 310 Times in 283 Posts	The Brown connector is for the speakers, which use all 8. Pins 4 & 7 in the BMW connector (Phone mute & K-Bus) are not in the ISO connector. It should be pin 1 in the Black ISO connector that is empty (phone mute input), pins 2 & 3 are for the steering wheel controls. The K-Bus is not part of the ISO connectors, in the O.E. wiring, it is via the CD changer connector. Last edited by raykay; 12th May 2019 at 21:09..