Well extracting the vocals was not neccecary, the vocals are by KCentric, I remember cause way back when i operated under a different name i made a remix using his accapella, you can find the accapella here: https://ccmixter.org/files/kcentric/32019

Milkdaddy has not mentioned any sources but this is one i know for sure.

Nice track btw. Good work!!! I like the bass part especialy in this one.