After a few good days replacing and splicing audio cues from Most Wanted, I've finally managed to get this to work.
This makes use of Xan's NFS Music Player and replaces all of the extracted InteractiveMusicBank1 files with all music cues extracted directly from Most Wanted, then spliced or mixed together in order to replace all cues properly. Thus, replacing Pursuit Theme 1 (Not Sure 'bout This T, This Doesn't Look Good and Ya Think) with Pursuit Theme 4 (Bet'r Ride, Kiss Yer _ss Goodbye, Take That Dawg and Layin' Low)
Check CarJasso's videos for references
Pursuit Theme 1: ua-cam.com/video/rZ7NcEcAVdA/v-deo.html
Pursuit Theme 4: ua-cam.com/video/YtSQCYStwew/v-deo.htmlsi=XWbN45ThtXFh1LVG
It was a tiresome work and this mod is definitely not perfect, but it demonstrates how powerful this tool can be with proper use. Maybe it's possible we could port all the pursuit tracks from Most Wanted instead of the two that were brought back for Carbon? We can dream!
If you have any questions, please leave them in the comments down below!