C230 Electrical wiring questions




Im worried that the blue wire has somehow got unhooked from the fuse box. Can someone familiar with the electricals on the car please identify that wire so I know if I should try to nsert it back or not.
Also, I know that the other three wires have something to do with the Bose sound system or just the MB stock sound system. But can someone please give me a few more details about what exactly these wires are. One is a fibre optic cable, the other is a computer printer type connector and the thirs looks like an antenna connector.
Pics attached.
The help is appreciated guys.





While I know that these wires are probably for options that didnt get fitted into my car, I figured if I know what purpose they were supposed to serve, I could use them for other stuff like my mods.

Which is why I would like to know what exactly these four wires are connected to. Any MB electrical gurus here?



