Beginner’s course for Golf 4

Hello. Have my driver’s license and car for 1 year now. Now I would like to equip my car (golf 4) with a music system. Unfortunately I have no idea about the matter at all. The system must not be too expensive. A maximum of 350 euros I would say, although 350 is already very close to the border. Radio I already have. So I would need: subwoofer, front system, rear system, power cap, possibly power cap? Right? I picked something out, and this is here:http://cgi.ebay.de/ws/eBayISAPI.dll? ViewItem&item=220064064921 What do you think about it? That sounds really good or not? Is everything you need as a beginner. Is clear, there are certainly better facilities, but I really don’t want anything good, I just want a system that I can turn on without scratching it. I hear Techno/Trance/Goa/Hardstyle/Hardcore if it is important. Would be very grateful for a detailed consultation.