Successfully installed B&W in MY18 XC60 but...

[83Greven]

Short answer NO.
2026 B&W are gen2 and the wiring is different.  Front doors have 3 individual channels (H, M, and L), Dash center has 2 individual channels (H and M) and rear doors have 2 individual channels (L and M+H). 

On the other hand,
If your used B&W gen1 came from a 60 series car and you are sure of it, you should be able to purchase and install AUD reload software via VIDA that will change your config to Premium audio make your upgrade official.

I cannot do it because my replacement B&W AUD came from a 90 series. The channel outputs on rear doors are different and it is not possible to change the config on the B&W AUD. (software is also different). That's why VIDA would not reload it for my car. So,  I rewired the rear doors to have the (MID + HIGH) channels and added MID speakers to my 2019 s60's rear doors.

Well, could work and will work includes a lot of doubts. I need a definite 100% answer so I can proceed and hook up the car to Vida. 

Tha amp is also from a XC60, the only things I needed to do was to install the wiring for the sub, rear roof speakers and center speakers and then move some pins by the amp + speakers itself + orbit.