850 Removable AHK E set not connected

Moin. I encountered a problem with my moose this morning. Attached trailer and what went on… GAR NIX. So I was looking for the error. That was quickly found: The connected cables were moved to the spare wheel pit, but there are now 2 plugs hanging there, i.e. no electricity no light. Then I made all the disguise all around with ambition and found the following. A small plug that is fixed at the driver’s side. When I pulled it off functioned It is also so long that I could put it to the plug from the AHK and turn it on. Colors and number of wires match. So far so good. But I lack the 2nd and larger plug. NOTHING in the entire trunk behind the covers. Otherwise I noticed only a large white plastic box, which I did not pay attention to. Light Control or something. with a huge plug on it. Did someone already have the same problem? I want the Stec I don’t want you to just do it, and then something’s gonna go wrong or something.