Hi - my GTI was supposed to arrive at the beginning of September but hasn't. Dealership has lent me a Jetta SE which I believe has the same stereo and speakers as the GTI. I'm no audiophile, but I like my music loud and bassy. Coming from an A4, it's not very good at all. Bass distortion, especially in the front. Is the speaker upgrade worth it, or does it call for something more radical - any suggestions welcome. Thanks