AUX In retrofit Sensus

[ayastrebov]

Hi folks!
As many of you know, Volvo removed the AUX-in port at some point. However, it can still be activated, which I successfully did.
Unfortunately, the wiring is missing. Has anyone already tried retrofitting an AUX input? Which wires need to be added? I suppose they should be connected directly to the IHU.
Maybe someone with VIDA access could check the wiring diagram?

[IMAY2023]

I never sow in the general wiring diagrams. but it used be on the USB port. 
Like the CD player, they removed it too.  IHU models up to 2019 has a CD input at the back of the IHU.  From 2020 and up that CD input no longer exists. They might have done the same with AUX in port. 
VIDA shows wiring according to the VIN.  That means, you need to find a car that has the AUX in and check according to its VIN.

[Danniu]

I also want to know how to add AUX audio input interface. Do you have any friends who know?