I've just bought a Sony CDXDAB6650 DAB headunit. It came with an aerial
splitter which works OK but it's not perfect, I'm assuming a dedicated
DAB aerial will be better.

Any clues as to which one's best? A combined FM/DAB would be nice so I
could just replace the original (MkII Mondeo) but I'll drill another
hole if I have to. I assume all the internal glass mount ones are rubbish?

John