The OST was released in 2006 but has been forgotten over time. The rip isn't mine, just something that has been in my collexion for a while; it seems to have been made using EAC and ripped to separate tracks rather than a single file. It is about 50% BGM and 50% oldies; Destroy All Humans 1 was 100% oldies.

MEGA link (https://mega.co.nz/#!maIF2CRa!AAAAAAAAAABo4QrcjBpFLQAAAAAAAAAAaOEK3Iw aRS0) 414 MB Flac

VGM DB (https://vgmdb.net/album/7665)