I rented a Chevrolet Impala in Orlando last week. Orlando would seem to be one of the best places on Earth for radio reception, with the largest hill being about 10′ taller than the surrounding terrain. The car came with an HD radio. When I would tune in a station, the radio would display “Acquiring HD signal” and then sometimes switch to the same sound but at a different volume level. An HD-only station, 90.7 HD-2 classical, would cut in and out for no apparent reason. It was basically impractical. Is there something particular about Orlando or the Chevrolet that makes HD radio more challenging? Or is it broken everywhere and for everyone?