Right when i pass my driving test i'll be getting a VW Golf MK4 1.4 SE. I want a powerful system for when i start to modify it, as i'd like to do sound offs at shows and events. Ideally i want something around 2000W RMS if not a little more. Could you please let me know what is involved? I.e: Whats the best subwoofers, amps etc I know that if i'm going to have a really powerful system i'll need a heavy duty alternator and battery(ies). I highly appreciate any answers that could help me 