i have 80 b4 tdi and i have 10 koax 2way cheap boxes in my back. i want to buy new ones. now i want to know if the part is under the hat rack, i.e. the sheet under the felt-like part is a supporting element, because at the moment are fitting magnets the speaker just so through the opening of the sheet. there is practically a hollow in the sheet and below then a 5cm large hole, that the magnets just fit through. for 13 I can possibly drill the hole so that i I don’t think I’m in the slanting part of the hollow yet. can you do that?? not that I’m in a bearing part of the square (I didn’t find anything really usable, except to have “is garbage boxes in the rear shelf” or “build yourself in the door”. I know that it’s not the best solution for sound technology, but the holes are available and I just want to expand for rearfill. if there’s no supporting part, then I can drill it up to the point that I’m evo the 165 phase. bring in, which I still have at home?!?! just another question: what do I bring in front for boxes in my car?!? me float 10s infinity 2 ways in front of so in the way of the 42.5 series I read that in front only about 9s in tens a fummelei sin but still go and 13s practically impossible. in the doors I want to make net absolutely something for the purpose of walling up and there I also have to put cable etc. what I have to net in the storage etc. hope the text is understandable already thanks MFG pa Nzerfahrer