R-Design steering Wheel

[Megailo]

Great so on average it's 250-300€ for the steering wheel with paddle, if I buy a steering wheel that can be heated and I install the option later is it possible?

It depends on the Steering Column Switch Housing you have! There are three connectors on the steering wheel mount side. AirBAG (Yellow) Buttons of the steering wheel (green) and the heater (white). 
If you do not have heated steering wheel from factory, your  Steering Column Switch Housing might not have the connector for the heating

Yes of course, I saw that I had to change the switch block to be able to have the heated steering wheel, but in the meantime I will leave the electrical connector of the heated steering wheel free while waiting to change the switch block. By the way, did you have an idea of the price for the switch? Are you in Europe or the USA?