Hello people ! I would like to install a subwoofer for the reinforcement of my factory-bose system. Since there is no space in the vehicle as in the station wagon, I don’t want to patch up the existing one with a giant box. Therefore, only an existing dive compartment in the rear area is considered as a place of installation. I estimate the volume to approx. 8 liters. Does anyone have a tip, for a suitable chassis ??? – the suitable final stage is also missing – should also be quite compact, that they are under He fits the seat…