Slanted truck speaker box to fit into W203 trunk... alphasonik shallow mount 12 inch subwoofer.....works for me... okay!!!???... again....you do you... I'll do me.... I certainly appreciate any positive feedback... I played around with the amp, head unit and LOC adjustments using ear, DMM and Ocsilliscope and will continue to tweak the system... BTW... I did not heR hear any