How to swap to new front seats incl. headrest with. phone?
 

Hello Again:)

My front seats in the car ( have beige leather with the alcantara) is kind of.. worn out.. and have found two almost new full leather seats at a good price.

They both have power seats as my own. My questions are as following :

Is it a pain in the ass to swap the new seats out with the old ones?

And.. Mine has the speaker build in the headrest for the telephone, but the new seat doesn´t:(
Is it possible to "un-mount" it from the old seat with the wiring and "mount" it in the new one?

Thank you:)