How to install Columbus on Superb?

I have just ordered the Columbus unit and it will arrive in a few days. I will go to service for the installation of the unit at the weeknd, i contacted them and they said that they did not install the unit before, so it will be the first time for them and apperantly they do not have enough experience and knowledge about the issue. I searched the internet and the forum but i could not find enough information regarding installation. I need documention, a website or a link containing information about installation of the unit and also coding, if available with the photos and detailed info to illustrate and show the process step by step...

I would be very sincere if you help me as soon as possible...