I installed this on my E36 M3 that I retrofitted Steering wheel controls from E39 M5. I will go in the steering column on the body side connector to the slip ring for the steering wheel. I never took pics... BUT just make sure you attach (splice it in) on the body side of the slip ring harness so if you ever need to, you can still remove the steering wheel without messing up your wiring...

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Vancouver, WA

2005 4.4i (LV12368) on Style 87's in summer and Studded Style 130's in winter.

1997 M3/4/5 (EE05340) W/ Vaders, Hella Xenon's, Chromline, DSII's in Summer, Contours on studless snows in winter.