BMW e46 Speaker adapter

These speaker adapters were designed during my E46 convertible sound upgrade.My E46 is a Euro spec convertible without Hi-Fi nor HK options. This means:Sound amplification is done directly by the build-in radio (CD53 manufactured by Alpine), with NO extra amplifier on the backSound was really bad given BMW did not include a cross-over between twitter and mediumMy speaker choice fell on RockFord Fosgate Punch Series P165-SI (after listening to several models in crutchfield.com). The P165-SI bundle includes a 165mm (6.5") medium and 44mm twitter, without modifying anything in the car (so I can revert to original set-up when selling the car),I decided to create a custom bracket because:Medium is quite chunky, with a mounting depth of 57mm (2.24"), requiring to customize the mount for the speaker to properly fit without modifying anything in the carTwitter sound is directional and most of the adapters I found online are flush to the door (not directed to driver and passenger head),