In original Activision game version music played during the entire mission. When I tried Gog version - it was not the music from the original CD. So, how do I get it?
P.S. I have ISO of the original music CD, but GOG version of game doesnt use it.

So, I just burned my game image and put it in the CD-ROM, now i have music in the game! But why GOG didnt add music to mp3, as they did it to Interstate '76. Copyright?

Same here!
Played a couple of missions and was so happy to have a functioning copy of this game, but each time I exited a car I noticed the overwhelming silence (the revving of the cars made me forget the music :D ). Took me a while to understand what was missing: the background music!
Looked at all the folders and files and couldn't find anything that looked like an archive with music.

GoG, what have you done??

One of playlists I found: www.youtube.com/watch?v=IucMSz72AAM&list=PLPzAb4gyK_CtL7VB1-K7oeY4ImoM4QDSb

Some dl links, containts more songs than playlist above: pastebin.com/BKLRY9dw

So how do you fix it