V60 T8 MY19 Retrofitting seat memory

[Pliind]

Well, In that case it should be. 
There are two harnesses inside the doors. 
1) On the door panel where the speakers, switches and lights connected.  > This is the one you are getting with your door panels. 
2) On the door itself that connects to car body and the rest of things on the door. (door handles, door module, window motor &regulator and so on)    
Number 1 connects to the number 2 via 22 PIN grey connector. 

In US made cars, the harness on the door (2) above, has the wiring from the 22 PIN connector to the door module for memory seats. 
You mentioned that you are in Sweden so I don't know if EU made cars has the same door harness or not.   
VOLVO has strange ways to save money.

Mounted the panels now and activated memory seats, the memory buttons makes sounds atleast when pressing memory button. looking at a harness im mounting to my front door pin 22 is pinned in it. so i guess i just check when mounting signal cable to front door handles that they are pinned also.