I'm considering replacing the factory fitted radio/CD player & speakers on
my forthcoming new 2006 Golf GTI.
I am considering one of the Blaupunkt Funline or T-Line radio/CD players
along with the facia bracket and wiring connections.
I also want to replace the door and rear speakers without resorting to
cutting any panel on a brand new car.
Does anyone have a recommendation for speakers of sufficient dimensions for
direct simple replacement?
I can't find any dimensions anywhere for the factory VW speakers fitted as
standard in the 2006 GTI.

Thanks for any help or advice.
John Slevin.