Opening track: https://www.mixcloud.com/cirillo71/f...rt-d-29081992/
Sounds like a remix by Frankie Knuckles or someone else from the Def Mix stable, but I haven't been able to find it in their remix catalogs so far.
As an added twist, I received a helpful tip that what sounds like a rerecorded version of the track was included on a compilation out of South Africa in 1998 "Mixmaster Vol 3" titled Undercover (Instrumental Dub) https://www.youtube.com/watch?v=mKQXnukDgY8
But unfortunately that title probably has no connection to the original - some of the other tracks on the compilation heavily copy better known tracks (e.g. the MAW mixes of Erotica by Madonna).