contacts/ connectors

I've removed the dash on my 412, (many thanks to Brad for his excellent photos), and now's the time to go through all contacts to sort out all electrical gremlins. Between the firewall and the battery, and also in the center console I found these round contacts which to me look more like audio than automotive. My car is a 1988 model. Has anyone seen these before.
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The first photo appears to be a din connector. I don't think it's factory but rather a remnant of an old accessory, perhaps a cell phone. It's location in the console lends credence to that.
The others I'm not familiar with but I would guess are factory, the wire colors don't correspond to the standard colors used for car audio.

 

A few of those 7~8-pin? round black plastic connectors are used in the TR central tunnel area too:
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Thank you, one less mystery! But there are certainly others. A previous owner had installed, professionally, a home made immobilizer system, which functions as follows; before starting switch on three of the A/C and heating knobs. Once the engine starts, one can switch off if no heating/ AC is needed. On top of this there were three key switches hidden in the passenger compartment.