I want to improve the performance of my music system, but it seems that the doors should be better insulated, so now the question, how do I get the door panels off of my V70 clean without damaging them? Besides, I want to install a subwoofer, and I was told that the right place for this is under the lattice for speakers in the dashboard. But I tried to make it out, but I didn’t manage to do it from below either, since you can’t get there because of the ventilation pipes. mt.So: How can I get the Gitter out? Thank you very much, Grß, Quade