Loose connector

[andy_1100]

I was changing fresh air/recirculation vacuum element and had to pull the dash off, when assembling everything back I found a loose wire that I don't remember disconnecting. My concern is that it might have come loose when I was installing the dash back. It comes from the rear of the vehicle and it's bunched together with all radio wire harnesses. It has a very unique connector and its brown/blue or blue/brown.
Anyone recognizes this connector?
1995 C280

26582659

[RemoLexi]

No clue what it is, but I doubt it came loose by accident. Probably a feature you don't have.

[andy_1100]

I think I've solved the problem with some help, One guy said it is an antenna ground, from other sources it's a security/alarm wire. I have the original radio in my car and this wire gets plugged in the back of the radio, there's a spade connector, looks like ground. The funny clip works as a stop (security feature). If you pull the radio out the clip keeps the wire back and pulls the plug off. I got everything back together now, just need to clear rhe SRS fault, forgot to plug passenger airbag first time I assembled the dash and turned the ignition on, I guess this triggered the fault.