T
thOOdee
Guest
Right now i know i have a harmon kardon that come stocked and is not bad at all, but i am wondering will it be difficult to upgrade the whole sound system even professionally? the reason i ask is i took it in once and they told me it would be pretty expesive and hard to do since everything is connected to the bmw's main computer. This was a couple of year ago however. If it is too much of a hassle should i just go for a sub? any information and suggestions would be great.