Have a look on YouTube for tutorials on 'how to make a stealthbox' or similar. Or failing that you could buy one? It'll give you plenty of room for prams etc. hertz speakers are pretty good if you like a bit of bass. JL audio and focal are pretty good for a more balanced system. If you've got a 5 door you'll need 6.5" components, not sure about 3 door. Depends on your budget really, A decent head unit and good quality components will probably sound better than a cheap set and a sub. You'll also need adaptors for your door speakers, halfords usually stock them.
