This is played when Scusami ti amo cover appears. It's supposed to be taken from the B side, Amanti per sempre, according to the Discogs page of the mix.
"I can't find the song on the Vimeo compilation in the moment you mentionedThere's a very short snippet of Amanti per sempre in this album cover compilation/mix:
https://www.discogs.com/lists/Radio%20Soulwax%20-%20Pin%20Ups%20VIII:%20Landscapes%20(NSFW)/329342 (#9 Amanti Per Sempre)
NSFW warning! Those are just album covers but still explicit. https://vimeo.com/26149122#t=2545s (45:25 - 45:33)
That's not a definite proof, but in my opinion, the melody is too similar for it to be a coincidence.Tony Bann Feghaly - Angela https://www.youtube.com/watch?v=__Yh5Un8iv4 - It is a similiar song , unfortunatly I didn't found "Amanti per sempre on youtube" . I'm waiting to listen another time to this song on the radio I listen to , record it and put it there as a longer sample.