Help - Where to put cable

Easysolar II GX - I searh pin code ( what a f**** action). One cable disconnected and I Dont find a place for it?

Could someone send a picture or guidance for it?

To the gx module, see this manual

I think it goes behind the wiring for the MPPT - it’s 3 ways or Y - one end to the MPPT, other to GX, and third is sortof behind the MPPT high current wiring.

Yes very likely, to the perpendicular PCB that already has a similar connector

Istuen solved. Thank you for all.