I am looking to buy one of the aforementioned car radios. My main concern
however is installation. I would like an external aerial to recieve the DAB
signal but I'm unsure what this entails. Ideally I would like to be able to
remove my current aerial and just screw in a new one but from what I read
this won't work. I would really prefer not to drill any holes into the
bodywork. Any hints would be much appreciated. I own a 2002 Volkswagen Polo
(don't laugh) would there be any power consumption issues there. I'm new to
this so thanks for any help.

Colin