I have one of these aerial window mounted jobbies, but I hate it lol! It works and it doesn't. Must be my area but my reception is poor, everything is connected correctly etc but listening to the radio is a ballache. It defo works, but when I've got my iPod plugged in, that decreases signal, and again when turned up load it loses signal.
Might just sell it seeing as I'm getting rid of the car in August...robz....?

P.S. Just checked the link, mine is nothing like that. haha!