Have just purcahed BMW e90 (sedan) 335i, it has the Hi-Fi system which i beleive consists of 1'' Tweets, 4" mid in each door and 6" sub under each seat, plus rear speakers.
anyone know how i can improve it?
a better amp? upgrade all the speakers in the stock locations? or both. add some sound deadening?
i did hear that the link between the amp and head unit is fibre optic and this has to be maintained.
any help appreciated.
Budget $3K all up or less.
Thanks.
Edited by oldtimer, 06 February 2012 - 05:27 PM.














