Ducati Desmo 250 - Regulator

Hello
Looking for some advice re wiring to regulator - wiring diagram and replacement regulator shows two yellow and one red wire from alternator to regulator - set up on my Demo is slightly different - 1 Yellow, 1 Red and I Mauve - see pic - does it matter when installing a new regulator to which yellow terminal I plug in to - trust this makes sense
Thanks
Martin