[aussie79]

hello from down under...

sadly.. australian e90 320i comes with 6-speaker sound system, which sounds far worse than my previous cars, golf & lancer.

I do not want such magnificent sound..
but just wish to upgrade the sound, a little bit, with least money spent.

should i change speakers? if yes, to what size?
will it make any difference?

should i put amp? if yes, which one?
will it make any difference?

changing speaker and putting amp will affect default system?
and cause any malfuction?

all da Sound masters out there, plz help me out!!!