I am posting here, in hopes that someone may have seen this wire while digging under their dash.
The wire is on a '88 420SEL.
I was taking off the "kneepad" part of the dash under the steeringwheel, when out falls this unusual looking wire.
It is black on the outside, with another white plastic sheathed wire on the inside. Kind of like a miniature version of a coax cable. The dia. is about the thickness of the refill part on a ball point pen. It appears to come (or go) from the upper left hand side of the dash towards the speaker area, and run across to the console (up near the rocker switches)
If anybody has seen this wire before, and knows where it goes... Please tell me, or at least give me a clue