need help with cd player

[goldenboot10]

so i know i can buy a cd changer that goes under the passenger seat, but i dont like the idea of changing cd's in the magazine especially while on the fly. i know the o3 o4 disocverys can come with a cd changer as the head unit, which i like. doe sthe same unit work in a 99 series ii. and if so i saw a head unit that goes in the freelander that looks like the disocverys. on ebay it says its an o3 o4 freelander cd player. do those work in the d2? i really would appreciate any help on this topic, thanks.