where can i find a mercedes benz part that locks the entire car and controls the trunk?

KB asked:


i need a mercedes benz part that can close the trunk and lock the entire car. i have a 1999 mercedes benz s420. the part that i need is a big bulky box with a cylinder and some things (i have no clue) sticking out like connectors. its like 1 foot by 1/2 a foot and goes in the trunk. i checked all the car dumps and places where people send there messed up junked up cars (car dump to be short). and i could not find anything…

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