Hello, as one can perhaps recognize by the title me in bloody beginner. and wanted to install in my BMW 116i from 2006 new sound – equipment. I wanted to have the standard speakers in front in the door installed and not change. As I have found guaranteed under the tweeter – cover nothing at all, therefore it would offer to install there new tweeters..? In the back of the trunk next to the hat rack are two loudspeakers, fixed. Now I come to the e actual questions: – Is it stupid to use the standard speakers with ? or should I just take them out of operation? if yes, where should I build new ones? – Then what for speakers are needed? tweeter? woofer? midrange driver? – Which subwoofer? with housing or without? – Which amplifier? – and which cables and connection options do I need? soft? etc? – can I use the normal BMW radio? or should I also build a new one? Mfg Phil. Ps. : if I what you have forgotten you may like to improve me. as I said, I have no idea of it.