Here's where the files are at.
I converted them with a free program called SWITCH/or WAVEPAD(from NCH Labs...use Google)
to change them to mp3 or your player may already play .adf files.
The GTA SA Radio you linked to I've used as well.
The SA radio is a completely different format than VC.
The GTA III radio files are playable.
^^^all pc I'm talkin'.