Thank you for creating such a useful thing for Italian car lovers

I have read many topics about multiecuscan, BUT I wanted to open this topic anyway, just to comunicate with you and be sure not to make any mistake while choosing correct software/hardware for my car.
MY FIRST QUESTION IS:
1. What exactly should I buy (I mean USB connector cables etc.) to make it work with my Alfa Romeo 159 2.2JTS 2005year? (ECU, Airbag, and averything)