Loud evil gulf

Hey, I’m about to get a Golf Gl where there’s only one cassette deck and the standard boxes in it.Since I don’t want to record cassettes or sing along because of too quiet sound, I urgently need advice.As already said, I’m completely at the beginning and have garnix…except for a quiet car *g* My budget is really limited but I don’t have any idea of prices…I see how much I get to give because it all comes into the car..So I need a radio (so 200€) and ne Final stage (no plan) then a good sub that also bangs…and then I nciht if I should only replace the standard boxes or at the back also ncoh boxen should pop in. that’s a 5-doorer therefore I could also build into the doors what in.So if jmd. what good white should he give me please nen tip.Radio is first very important and if jmd. the installation dimensions of the golf (’91 1.8l 90hp 19E) for boxes he could also please tell me.I need real help otherwise I doubt. I can only say hip hop and trance…Thank you very much, Freddie.