Audi A3 8L Bose issues

[fivepointnine]

Finally have my 01 A3 1.8T running right, now I can focus on the other things! My factory bose radio sounds like crud, I have to keep the fader all the way to the back due to the front speakers sounding all scratchy with low volume relative to the rear. If I use the balance all the way to one side the other speaker still produces a scratchy sound. Does it sound like an amp or head unit issue rather than blown speakers? (I also cannot hear any sound coming from the tweeters)