[egetolus]

hello,

ı have a new 320 .but ı am not satısfy from my musıc system ı mean ı am not satısfy from my speakers .ı have just 4 speaker ın my car.
problem is ın our country bmw sellers ın Turkey say me that ıf you put another speaker o musıc system lıke alpıne or etc.... it wıll damage orıgınal bmw musıc system is this true if not could you please advise me some mucis system

thanks for your answers.