I have made good progress on the video, but have a few more bits to add. I go back to the shop tomorrow to have the boot floor completed. I can then film the system on a flat eq non time aligned and finish the video.
I have so far edited together the entire build of the system from strip down of interior to new wiring looms to speaker installations. I just have the audio comparison to complete.
As for your concerns about bass in the boot well. It sounds great in their and very tight. However I may get the shop to build me a smaller box getting rid of the current box and BMW inner as otherwise my boot floor will have to raise and I will loose the oem look. This should allow me to keep the same basic internal volume as now. They have quoted me £65 to make a mdf box in the well. This I can then carpet as I had not allowed for the height above the subwoofer from the fibreglass box. Sub sits proud 1" and need a further 1" for sub excursion. Thus floor would be 2"s higher.
I"ll upload some pics in a mo
E90 330i SE Auto Graphite Grey Metalic