I took the rear speakers out last week and replaced them with identical Alpines that I put in the front recently ^^ and I have to say the difference is outstanding. A more than worthwhile mod for £70 odd quid, new sub and amp now I don't think it needs it for the amount of time I actually have the stereo on and I've noticed now with these higher output speakers that I can crank the volume up much further without distortion than I used to be able to and the stock sub seems better than it was before as it's not being held back by the poor original speakers. Well that's my reasoning but I'm sure one of you audio buffs will correct me if I'm wrong Can't wait for our trip down to the south of France, mrs glrnet won't be getting as much sleep as she usually does