You’ve got it.
Here are the instructions. http://en.bumm.de/fileadmin/user_upload/Anleitungen/175qt.pdf
If you need I could do some photos. Although, from memory, I don’t have a short lead on the front light I just have a couple of spade connectors. The little black plugs are to connect the cable to the rear light as suggested by @grams
You’ve got it.
Here are the instructions.
http://en.bumm.de/fileadmin/user_upload/Anleitungen/175qt.pdf
If you need I could do some photos. Although, from memory, I don’t have a short lead on the front light I just have a couple of spade connectors. The little black plugs are to connect the cable to the rear light as suggested by @grams