I’m thinking about optimizing a few things in front system and vehicle insulation. Is there a sleigh guide who has converted the audio system of their elks? The aim is a linear sound as far as possible, at moderate volume. I don’t want a disco subwoofer is just something for home cinema for my taste. With music, it only breaks the sound image. I prefer the following: – (if possible) better isolate the outside noise with bitumen – fix all vibrating, snoring parts – besse res install radio – all old boxes out, including the riot box in the rear – install better front system