Aveo T300 wiring questions

Hey guys, first time poster from Bosnia here. :D
So I've bought a crashed 2011 Aveo T300 1.4L hatchback thinking it needs body works mostly. He needs some parts under the hood too which i can buy or make them work.
The only thing that bothers me insanely are some wires and a connector, since I'm not very good with that.
I just want to know where do they go. Is a part/are parts missing? Do they connect directly? The connector reaches to the engine but the wires go through a hole in the firewall towards the cockpit, alongside the back wiper fluid hose. I can't find the same Aveo model to use it as refference for the parts or the electrics problem. Please help me out guys, I'd appreciate it very much.

P.S. sorry for the potential funny names, some parts that can't be translated to English well. :)

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