From the lead of SoCal M3 in another forum, I installed the OEM hitch, which I customized, as SoCal did, by cutting off the turn signal brake receptacle, turned it about 90 degrees, then welded it bac onto the hitch. I then took the LCI trim bracket and cut it an rewelded it such I used just a small arc to cover above he hole I cut. A very tight, clean look. However, it requires you to get on your back to put the receiver retainin pin and to plug in the trailer lighting receptacle. Since I use the hitch to pull a trailer less than 10 times a year, I can live with that inconvienence. See pics.

Dealer coded for the hitch after I installed it.

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