Amazon.com The KD-HDR20 is an easy to use, the HD Radio receivers, with a number of modern elements. Built-in HD Radio offers a variety of programs in premium digital sound. The device has DiAS tuner and digital processing for FM radio quality. Front AUX-IN, you can easily play songs from digital audio players. Whatever your source, you can enjoy excellent sound quality with MOS-FET power amp and 24-bit DAC, and in accordance with sound 7-band parametric iEQ. You can also Bluet