Mini-Z reception tips?

[Spomo]

Hey folks,

I installed a bunch of Hop-ups from Powerline Racing on my Mini-Z
(aluminum based parts - car corners unbelievably now! :) ) and I think
that all this "metal" on my car might be interfering with the
reception a bit...

Any suggestions as to how I can increase the radio reception with this
car? If there's an antenna which will fit the Castrol NSX body without
too much "twisting" I'd appreciate a part number.

Other than that, I'm open to any suggestions (except to "take the
parts off" ;) )

Thanks.

-Spomo-