When replacing my aspirator motor for the climate control I found this wire disconected, does anyone know what it plugs into? This is behind the glove box on an 86 300sdl.

Something to do with the radio system ,may be a speaker plug.Looking at the wire its aftermarket . I dont have one in mine .Removed the cubby, box to remove my alarm after the alarm went down .

I have that in mind as well, not connected. I'm pretty sure I was the first person in behind my glove box too. Maybe it's diagnostic or something. Wouldn't worry.

That plug definitely looks like a speaker hookup to me.

Thats a relief, thanks!

Definitely a speaker plug

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

It's probably the aux speaker hookup for cars with speakers in the front doors. If you hook a MB speaker to it you can verify my theory.

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84 300SD
85 380SE
83 528e
95 318ic