Combine three antennas?
 

Hi,

I just purchased a used 2008 CX-7 Grand Touring. There are a total of three antennas - 1 on inside of the windshield for the satellite radio, 1 in the center back for AM/FM, and 1 in the right back for the navigation.

Is there anyway I can combine these into one? Like those shark fin antennas?


Thanks,
Ngockieg