Here is Sean's 2008 BMW 335i. He was looking to upgrade the Logic7 system with something that was more fitting to the performance of the car. (a quick note. some pics were accidentally deleted so some aspects of the install were not captured, like the main power run, audio tapping at the OEM amplifier but I decided to post what I have).
Starting with the doors I did a comparison of OEM to aftermarket. Focal K2 100 KRS are replacing the OEM equipment.
Plexiglas mounting plates were fabricated to utilized the OEM mounting points.
Both doors received the same treatment. Foam gaskets on both sides of the of the speaker.