Hello again, Iv got and audi a3 model 8p and it has the bose upgrade in it. The sub in the boot, the one in the passanger side bit, is starting to make a funny ratteling noise. How the hell can i get to it? Also i was wondering the following:

1) What would sound better: Putting an upgraded sub in the space where the bose one is or getting the Vibe AC12 twin with the space upgrade? The reason i ask is becuase the bose one it attached to the car if you know what i mean, what about putting a sub in the spair wheel well? What would sound the best? Any help would be brill!