I recently purchased a 92 300E. And I have noticed something is missing under the rear seat on the left side. The bracket is still there and it mounted in front of the vacuum control valve for the rear head rests.There are a bunch of wires that go to whatever it was. Two bigger plugs one with 10 wires the other has 12. Three smaller plugs two with 3 wires one with 6. The windows don't work and I was wondering if this had something to do with it. If anyone knows what should be there. I sure would appreciate it if you would expound some of your knowledge on me.

Mike