Who can help: I have the TID 2.2 125hp with audio system 2 Radio+CD+6 changer. There I have in the dashboard boxes, 2 boxes in the door, which probably work from 200Hz and less with separate 2x40Watt amplifier and rear 6×9′ boxes. I would like to exchange the boxes for better, but do not know which are better due to the installation depth and also in the sound. The goal is with me max. 200 € with little manual additional effort. Oundsystem tried with success? MfG, Oliver