I just "upgraded" from a Sportster in my old Madza to a factory installed in my new 2009 Mazda 5. The reception keeps cutting out: "acquiring...". I noticed that the dealer put the antenna directly under the rooftop radio antenna (i.e. between antenna and back edge of roof). This placement was a no-no in the sportster manual. I'm wondering if its the same in the OEM model. Anyone know if this could be the problem? Or, is the radio just not as good as the sportster.