The black box with the thick cables?

No wonder I can't find it: I do not have one at all.
It was apparently removed by the previous owner for reasons unknown.

What I have is the heavy cable looped and taped onto itself. I am about to go do a little surgery to remove the tape and see what's underneath.

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2008 E350 4matic / Black/Anthracite

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Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black