Hello guys, don’t know me very well with CarHifi m.M.n… I bought a box some time ago from Ground Zero, with two GZHW 30 Woofern (2x800Watt RMS) GZNA 4350x (1800Watt 4Ch 1Ohm stable) and a 1F pastry! Since the box doesn’t fit quite in my car (Audi 100 C4 Limo), but the price and the sound + performance was so good, I wanted to make a new box now! The biggest problem is the closed trunk, only two extinguishers in the hat rack (which I already used for TMT? and just the ski bag opening! The bought Woofer is actually only a few cm too high and the opening a little too long! So the box has to go deeper -> has to become wider! And the opening shorter -> has to become wider! Would you like to have some experience of you now! 1. the components (was recommended to me by the dealer) 2. do you have links to similar conversions 3. what is there to consider in principle with Woofer conversions? Could you possibly even still have 5. What does “net volume” mean? P.S. I add a picture of the original box, have the times “fix” scribbled! Please improve me if I’m wrong somewhere… If I’m wrong, I’m not sure if I’m wrong.