Wiring diagram for the loom under the windshield? The one that connects the ECU loom with the interior one.

Hi to everyone, sorry if im posting this in the wrong place.
I have a 2003 Octavia Mk1 with the BFQ engine, and had trouble with the wiring loom, it was repaired poorly and had problems for a while. i took it out, and wanted to see where some wires go, especially the ones that connect the engine loom with the interior loom, which is located under the windshield. Unfortunately, i dont really have the dexterity or knowledge to research some wiring diagram, yet alone to understand them. I know one connection is for the cruise control, one has the signal for the back up sensor, but otherwise, i'm completely lost. I can see that 5 plugs are 10 pin ones, and one is a 6 pin. There is also a connector located near the battery, that also connects engine wiring to the car wiring, i presume that is for AC or radiator fans/sensors. If somebody has some information, that would be lovely and really appreciated. Thank you in advance!!