Please can somebody tell me why my car radio, when in AM mode is unlistenable. I love to listen to talk sport but when I am driving, the noise from the engine interferes with the broadcast and it sounds like a giant motorbike is revving up on my dashboard. It is annoying that I am not able to listen to my favourite show! All other channels, including radio 5 live which is in the same band, are not affected. Please help!