Aerial options to accomodate boot spoiler

[Robert Stirrat]

Hi listers, now that I have a Hella boot spolier fitted to my A80 B4, I have
to retract the aerial every time I want to open the boot(trunk).  What
options are available to me to prevent me having to do this.  I am aware of
the 'bee-sting' style of antenna, however I am not keen on its appearance, I
also don't particularly want to move it to the back of the roof.  Is there a
OEM power antenna or better still an aerial with a universal joint used for
positioning.  Does the Cabriolet have a power antenna?  I think I've seen a
Mercedes C-class with this universal joint type of aerial (I don't know for
sure).

Any help/advise is always welcome.

Robert.