Hello municipality, I intend to do the following: I cut a hole in my trunk carpet and put in a 30’s woofer from Raveland. I reinforced the whole from below with a 19mm thick MDF from below. In the spare wheel trough there is currently only simple insulation wool. the bass is not so powerful. My questions are: Is a GRP enclosure better than a wooden housing? How long does it take to build a GRP enclosure? How is the sound then?