From a coaxial speakers mishmash (JBL and infinity) to a 3-components speaker set from Hertz MPK 165P.3 (3 ohm woofer + 4 ohm mids and tweeters).
Sound damping the doors (wherever possible/usefull) was priority #1. Actually, there was a little alybutyl installed by Porsche already.
Sound damping the subwoofer frames was priority #2
Sound damping the door carts was priority #3
Maybe a little over the top
