Apologies if this is in the incorrect place, I am new to posting here.
Having only recently taken a first step into the VAG world, I was playing about at removing my radio head unit (Nexus?) in my Mk2 Octavia pre-fl when I came across this wire which appears to have been cut off, stuck rather crudely above the head unit (See photos).
The wire leads down to behind where the climate control panel is but my inexperience with cars stopped me from looking into it further.
The car has had many previous owners to it is entirely possible something was installed and hence removed.
Does anyone know if first this wire is important (as I’ve not stuck it back in the same position) and secondly if this is factory fitted, or a likely modification which has subsequently been removed?
Any extra advice on installing a Bluetooth receiver and identifying this radio is much welcomed.
Thanks in advance
-Haol