Octavia MK2 right rear window motor ECU

Hi Guys

I have a 2006 1.9 TDI and the rear windows  not working I replace the main window switch on the front and find out the rear right motor is completely burned and gone so bought a new one for same year and type Octavia

Unfortunately still nothing but after some research find out I have to check not only year and time but also right part number Ok I find only one stickers on the front of connector but nothing on motor

Get the part catalog and find the right number and ordered Not working  In part catalog they say I need 1KO 959704 E but not working On my ECU stickers on old motor show 1KO 959 794 E but how I see the number on motor and number on ECU always different

My question is I  find ECU wit this number but on the end the letter is different not E is AA What is mean an I use this ? Thanks