Have the seat heater for my Kia Ceed bought, installation is not difficult under are sitting two holes hook fit in, the back part has two elastic bands which I have upper to the headrest, at level "Hi" is quickly hot, then I have turned it off until it cools down a bit and Dan to "Lo". One point deduction, the switch shown is wrong, it's the other switch what you see sitting at the other, with a side button, Otherwise I am satisfied so far,