A highly technical question for someone with working knowledge of the W124 wiring system.

I need to get at accessory equipment connector block X30. Have found a diagram of its approximate location, but can't tell if its in front of the firewall just in front of the driver, or deep under/inside the dash.

ANY help would be appreciated; looks like a mouse has been at the wiring in this car.

'94 E320 wagon

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1995 MB E320 Wagon
2001 BMW 530i
2007 MINI Cooper S (!)