Prius 2011 (gen3) tracking light and clock spring

Hi Priusers.
Need your help. About two years ago I decided to put a new cover with thread for my steering wheel. While taking off the steering wheel I ripped off the whole internals of the clock spring and had to replace it. Everything was fine till my steering wheel buttons stopped working. Decided to replace a clock spring again, since I am an experienced clock spring replacer now.
During the assembly I found out that I don't have a wire that supposedly has to be connected to the top right socket (marked X).
Also, have a tracking yellow light on now. Are these details related to each other?
Help, please

P.S. photo 1 - empty socket
Photo 2 - some other suspiciously empty part
Photo 3 and 4 - all my available and occupied sockets.