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Message: <blockquote data-quote="mamat_mooza" data-source="post: 28093" data-attributes="member: 24186"><p>hello,my father have just acquired the 535i F10 couple of weeks ago and is rather satisfied with the car. however, we both couldnt be satisfied by the quality level of the stereo. a bit of history, he previously owned a 530d E60 and wasnt happy with the stereo too. he upgraded the components (speakers, amps, processors) and it costed him around RM20k. its either the ICE workshop calibrated wrongly or simply bad workmanship (some element of dispute), but the quality did not improved as much as he had expected. so he's given up trying to upgrade the components, and looking for another solution. could anyone kindly suggest anything? we r considering/finding out ways to retrofit a professional/logic 7 system into his car. but now it's dead end since nobody seems to have done it</p></blockquote><p></p>