I have a CD with Radio in my glove box, with the antennae mounted from front to rear along the top of the passenger foot well. My speakers are in separate enclosures on my back deck. No holes anywhere. It works best with a CD, but the radio is fine, if the signal is strong.

Cheers,

Attached Images
Antenna.JPG (301.78 KB, 163 downloads)
Radio & CD.JPG (327.09 KB, 163 downloads)
Speakers.JPG (317.38 KB, 163 downloads)

Mark

1934 SS MX4
1938 Series 1 DHC
1951 Plus 4
2005 Roadster