Reviving this topic a bit.
Picked up a 135i recently as a daily.
Ordered the WMA3000B model and if I plug it the AUX cable all the way in, the right side audio sounds terrible and faded. If I only plug in half way it sounds good but probably will disconnect when driving over bumpy roads.
I read thru this topic and looked online based on my VIN and it doesnt show the COMBOX option.
Iits a 2011 with Professional Radio and Harmon Kardon.
__________________
Follow me on IG
Garage: 2018 991.2 GT3|2013 135i|2004 M3|2004 X3|1987 325is|1987 325i|1974 2002tii
|