Sorry this will sound sooo naive and stupid etc etc... Im getting a brand new (53 Plate) Corsa SXi in a couple of weeks.. It looks like its CD player is all in one big lump / fitting and not the standard size ones. obviously i wanna buy one with flashy lights and crap but it doesnt look like you can take out the one that comes as standard...im only going from pictures etc. can anyone advise?? Thanks!