LOL
NOW I'm confused...
I definately ordered and paid for, the concert pack.
What I've actually got is some sort of tweaters on the door (plain black), baseworks speakers in the front, and what appear to be normal speakers in the back.
(silver rings, but no "baseworks" written on them like the front ones do)
And because the fader is turned up at the back, it's those speakers which are causing the problem.
So I guess the first question is - should I already have baseworks speakers back there
