Hello I would also like to make a little sound in my LUPO, would only need a few tips. I want a system with ventilated front speakers and rear sub, both over power stage. I want to put the sub in the spare wheel hole, who can give me tips? Where is it best to build the power stage if you want to get the girlfriend’s handbag in the trunk at least? I look forward to answering Mfg Megarichie