The problem has never been the hitch, it's been wiring In The brake controller! Stupid BMW electronics! I finally gave up the process and got a wireless.
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Garage; 2020 Raptor, 2011 1M, 2017 M2 PE, 2006 Z4 MC, 2007 Z4 MC, 2001 Spec E46, 2007 GT3
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