I never found the in-screen wires on my Mondeo intrusive at all. I was actually permanently surprised by the way that although they were easy to see when focussing on them, whether inside or outside the car, they disappeared completely when looking out through them onto the road ahead. Not once did I find my vision focussed on them when I didn't want to. To be honest, I'd like a car with heated glass all round and do away with scraping altogether.