I'd recommend Elephant as well.
My first Golf (Mk2 GL 1.8 ) cost me 1200 to insure using Ensleigh/Norwich Union, but now I'm with Elehpant and their quotes always seem to be Confused.com .
Try some of the VW specialists, they seem pretty decent, Adrian Flux or
BrentAcre VW Insurance Specialists (01792 650933) or Greenlight insurance (0870 7535455). Some will also allow you mods too.
Watch out though with Elephant, I went for the 10month bonus Accelerator scheme, but when I went elsewhere for quotes after completing 10months, they said it wasn't worth 1yr no claims, so would only quote me for zero no claims.
So I've had 2x 10month bonus accelerator policies, to earn me "2yrs no claims", which Elephant were happy to use to get me a new full 12month policy.