Very easy to install, I was looking for a manual in the box, but the process is actually explained in the car menus when you install the knob. It's great to have a conffigurable button, which features can be changed easily depending on the season (seat heating i nwinter, seats ventilation in summer !), the type of trip (sound and media play). I love it. and as Usual, order is very well handled by niceevs !
