yes or no

Ive currently got a mk4 ibiza pre facelift model with the standard factory headunit in its been on my mind for a long long time to get the headunit that i had i my old car fitted into the ibiza i am just having a few doubts because i asked the dealer when i bought the car about changing...

seen these and put in my car details...are these just a simple..."fit on the same as normal wiper blades" function, ie put onto the hook and turn? plus anybody got these exact ones on there car? pics??? thanks