Here's the situation: I want better-quality sounds, primarily more bass
1. If I simply upgrade the current front and rear 6.5s to some higher-quality units will I notice any massive improvement?
2. If I buy a subwoofer/amp package, can the VW unit run it or will i have to upgrade the headunit?
If these questions have been asked before then feel free to point me in the direction of the relevant post, I'd be grateful! Oh and if it helps to know what kind of music I'll be playing, its a range of anything from Thunder to Green Day to Audioslave to Euphoria to BT to Groove Armada. All sorts of stuff!
Cheers