Radio aerial question...

[pidgeonpost]

I'm hoping that our Berlingo will have a garage built some time this year, and although the car itself should fit OK (1.87 metres tall including the roofbars), the roof-mounted radio aerial is a different matter. At present the aerial sits at maybe 40-45 degrees, and looks like it should fold down closer to the roof. It seemed reluctant to move when I tried it today - I guess there's probably a securing screw hidden under a plastic cap in the bracket. I'd be interested to know if anyone has been here before and how they overcame the problem - perhaps even fitting a different aerial. Left as it is the aerial would just deflect when the car was put in the garage forwards, but it would do itself a severe unpleasantness when reversed out

Any thoughts please folks...?