Hitch retrofit

[Pliind]

May i ask what orbit setting people are using when retrofitting the original foldable towbar? 

There are two options on setting 211 throwing me off 13pos or 4/7pos? 

Im in Sweden if its region specific setting on the power out.

The 13 pins plugs is a round one with 13 pins (duh!)
The 4/7 is the small round (7 pins) or flat (4 pins)

Sounds good. Thanks ill have a look