The Alpine CDA-9886 head unit plays AM, FM, CD, satellite radio, and has a USB input and an iPod input. Crutchfield sent the Sirius Connect SC-C1 and Alpine Sirius interface so the head unit controls Sirius. The Alpine also receives HDRadio and is Bluetooth-capable. I usually like OE head units as they're simple to use with large controls that are easy to see. The Alpine was a pleasant surprise, as the display is very easy to read and controls are intuitive. I didn't have to look at the owner's manual to operate it (well, OK, I only had to glance at the owner's manual). The sound is clear and distortion-free.